@import url(https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&family=Montserrat:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap);.float{-webkit-animation:float 3s infinite;animation:float 3s infinite}@-webkit-keyframes float{0%{-webkit-transform:translatey(0);transform:translatey(0)}50%{-webkit-transform:translatey(-20px);transform:translatey(-20px)}to{-webkit-transform:translatey(0);transform:translatey(0)}}@keyframes float{0%{-webkit-transform:translatey(0);transform:translatey(0)}50%{-webkit-transform:translatey(-20px);transform:translatey(-20px)}to{-webkit-transform:translatey(0);transform:translatey(0)}}.rotate{-webkit-animation:rotate 4s infinite;animation:rotate 4s infinite;-webkit-animation-timing-function:linear;animation-timing-function:linear}@-webkit-keyframes rotate{0%{-webkit-transform:rotate(-5deg);transform:rotate(-5deg)}25%{-webkit-transform:rotate(7deg);transform:rotate(7deg)}50%{-webkit-transform:rotate(-2deg);transform:rotate(-2deg)}75%{-webkit-transform:rotate(4deg);transform:rotate(4deg)}to{-webkit-transform:rotate(-5deg);transform:rotate(-5deg)}}@keyframes rotate{0%{-webkit-transform:rotate(-5deg);transform:rotate(-5deg)}25%{-webkit-transform:rotate(7deg);transform:rotate(7deg)}50%{-webkit-transform:rotate(-2deg);transform:rotate(-2deg)}75%{-webkit-transform:rotate(4deg);transform:rotate(4deg)}to{-webkit-transform:rotate(-5deg);transform:rotate(-5deg)}}.pulse{-webkit-animation:pulse 4s infinite;animation:pulse 4s infinite;-webkit-animation-timing-function:linear;animation-timing-function:linear}@-webkit-keyframes pulse{0%{-webkit-transform:scale(1);transform:scale(1)}25%{-webkit-transform:scale(1.2);transform:scale(1.2)}50%{-webkit-transform:scale(1);transform:scale(1)}75%{-webkit-transform:scale(.8);transform:scale(.8)}to{-webkit-transform:scale(1);transform:scale(1)}}@keyframes pulse{0%{-webkit-transform:scale(1);transform:scale(1)}25%{-webkit-transform:scale(1.2);transform:scale(1.2)}50%{-webkit-transform:scale(1);transform:scale(1)}75%{-webkit-transform:scale(.8);transform:scale(.8)}to{-webkit-transform:scale(1);transform:scale(1)}}.shimmer{-webkit-animation:shimmer 2.5s infinite;animation:shimmer 2.5s infinite;-webkit-mask:linear-gradient(-60deg,#000 30%,rgba(0,0,0,.333),#000 70%) right/300% 100%}@-webkit-keyframes shimmer{to{-webkit-mask-position:left}}@keyframes shimmer{to{-webkit-mask-position:left}}.delay-random-1{-webkit-animation-delay:1.01s;animation-delay:1.01s;transition-delay:1.01s}.delay-random-2{-webkit-animation-delay:616ms;animation-delay:616ms;transition-delay:616ms}.delay-random-3{-webkit-animation-delay:1221ms;animation-delay:1221ms;transition-delay:1221ms}.delay-random-4{-webkit-animation-delay:1123ms;animation-delay:1123ms;transition-delay:1123ms}.delay-random-5{-webkit-animation-delay:1196ms;animation-delay:1196ms;transition-delay:1196ms}.delay-random-6{-webkit-animation-delay:937ms;animation-delay:937ms;transition-delay:937ms}.delay-random-7{-webkit-animation-delay:949ms;animation-delay:949ms;transition-delay:949ms}.delay-random-8{-webkit-animation-delay:998ms;animation-delay:998ms;transition-delay:998ms}.delay-random-9{-webkit-animation-delay:723ms;animation-delay:723ms;transition-delay:723ms}.delay-random-10{-webkit-animation-delay:652ms;animation-delay:652ms;transition-delay:652ms}@font-face{font-family:Noto Sans Myanmar;font-style:normal;font-weight:400;src:url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.c53b9394a1282c68e7ff.eot);src:local(""),url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.c53b9394a1282c68e7ff.eot?#iefix) format("embedded-opentype"),url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.a8b03b7ccb031c17b2fa.woff2) format("woff2"),url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.96523d6d9e666de1980f.woff) format("woff"),url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.97943186150b519cc077.ttf) format("truetype"),url(/learn/interactive/what-is-an-n95/static/media/noto-sans-myanmar-v19-myanmar-regular.5a666aab959de3341aff.svg#NotoSansMyanmar) format("svg")}*{box-sizing:border-box}:root{--window-height:null}@media screen and (max-width:280px){html{font-size:calc(-13px + 7.5vw)}}@media screen and (min-width:360px){html{font-size:calc(13.07692px + .25641vw)}}@media screen and (min-width:1920px){html{font-size:18px}}body{color:#003276;font-family:Montserrat,sans-serif;margin:0;overflow-x:hidden;position:relative;scrollbar-width:none;transition:background-color .4s ease-in-out}body::-webkit-scrollbar{display:none}p{margin:0}.img-fluid{height:auto;width:100%}.img-fluid-height{height:100%;width:auto}main{display:flex;justify-content:center}.container,.wrapper{align-items:center;display:flex;flex-direction:column;position:relative;width:100%}.sticky-container,.wrapper{justify-content:center}.sticky-container{align-items:center;display:flex;height:null;height:var(--window-height);position:-webkit-sticky;position:sticky;top:0;width:100%}@media screen and (max-width:1028px){.sticky-container__title{height:calc(null - 3.125rem);height:calc(var(--window-height) - 3.125rem);margin-top:3.125rem}}.part1{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part1{--min-font-size-px:12px;--min-font-size:12;--max-font-size:16;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part1{font-size:16px}}.part1__heading{color:#0c929d;display:flex;font-size:2.25em;font-weight:700;justify-content:center;max-width:12ch;text-align:center}@media screen and (min-width:1024px)and (min-height:576px){.part1__heading{background-color:#0c929d;color:#fff;max-width:none;width:100%}.part1__heading p{max-width:20ch;padding-bottom:2em;padding-top:2em}}.part1__mask{align-items:center;background-color:hsla(0,0%,100%,.9);border:.3125em solid #298fc2;border-radius:50%;display:flex;height:14.25em;justify-content:center;margin:1em 0;padding:1em;width:14.25em}@media screen and (min-width:1024px)and (min-height:576px){.part1__mask{position:absolute;-webkit-transform:translate(-15em,5em);transform:translate(-15em,5em)}}.part1__text-box{align-items:center;background-color:#fff;border:.1725em dashed #298fc2;display:flex;flex-direction:column;opacity:0;padding:.75em;position:relative;-webkit-transform:translateX(1.5em);transform:translateX(1.5em);transition:opacity .5s;width:17.25em}.part1__text-box:before{border-bottom:.1725em dashed #298fc2;border-left:.1725em dashed #298fc2;border-top:.1725em dashed #298fc2;content:" ";height:13.96875em;left:-2.8725em;position:absolute;top:-7.94375em;width:2.7em}@media screen and (min-width:1024px)and (min-height:576px){.part1__text-box{position:absolute;-webkit-transform:translate(12em,5em);transform:translate(12em,5em);width:25em}.part1__text-box:before{border:none;border-top:.1725em dashed #298fc2;height:auto;left:-7em;top:50%;width:7em}}.part1__text{color:#298fc2;font-size:1.125em}.part1__logo{margin-top:.5em;width:10.1em}.part1__background{position:absolute;-webkit-transform:translate(11em,6.2em);transform:translate(11em,6.2em);transition:opacity .5s;width:47.9em;z-index:-1}@media screen and (min-width:428px){.part1__background{-webkit-transform:translateY(6.2em);transform:translateY(6.2em)}}.part1__background.fade{opacity:.05}@media screen and (min-width:1024px)and (min-height:576px){.part1__background{margin-top:-9em;position:static;-webkit-transform:translate(0);transform:translate(0);width:64em}}.step{word-wrap:wrap;background-color:#000;color:#fff;height:1000px;margin-bottom:16px;opacity:0;width:100px;z-index:100}.step.show{opacity:60%}.scrolldown{font-size:16px}@media screen and (max-width:576px){.scrolldown{font-size:12px}}.scrolldown__wrapper{align-items:stretch;background-color:#036;border:1px solid #fff;bottom:16px;color:#fff;display:flex;font-size:16px;font-size:1em;padding:1em;position:fixed;right:50%;-webkit-transform:translateX(50%);transform:translateX(50%);transition:opacity 1s;z-index:100}.scrolldown__wrapper.hidden{opacity:0}.scrolldown__text{text-align:center;width:10ch}.scrolldown__icon{align-items:flex-start;display:flex}.scrolldown__icon img{-webkit-animation:movearrow 1.2s infinite;animation:movearrow 1.2s infinite;height:1em;width:auto}@-webkit-keyframes movearrow{to{-webkit-transform:translateY(1.2em);transform:translateY(1.2em)}}@keyframes movearrow{to{-webkit-transform:translateY(1.2em);transform:translateY(1.2em)}}.show-helpers{background-color:#036;bottom:0;color:#fff;margin:1rem;padding:1rem;position:fixed;right:0}.show-helpers.on{background-color:#fff;color:blue}.reset-button{background-color:#3d3d3d;bottom:0;color:#fff;left:0;margin:1rem;padding:1rem;position:fixed}.loader{align-items:center;background-color:#fff;display:flex;flex-direction:column;height:100vh;justify-content:center;position:fixed;transition:opacity .3s;width:100vw;z-index:100}.loader.hidden{opacity:0}.loader__text{font-family:Lato;font-size:3rem;font-weight:700;margin-bottom:2rem}.loader__spinner{align-items:center;display:flex;gap:1rem;height:3rem}.loader__spinner .bar{-webkit-animation:squish 1s infinite;animation:squish 1s infinite;height:3rem;width:1rem}@-webkit-keyframes squish{0%{height:3rem}50%{height:1.5rem}to{height:3rem}}@keyframes squish{0%{height:3rem}50%{height:1.5rem}to{height:3rem}}.loader__spinner .bar-1{-webkit-animation-delay:.25s;animation-delay:.25s;background-color:#7d4578}.loader__spinner .bar-2{-webkit-animation-delay:.5s;animation-delay:.5s;background-color:#f4e04f}.loader__spinner .bar-3{-webkit-animation-delay:.75s;animation-delay:.75s;background-color:#2c998a}.loader__spinner .bar-4{-webkit-animation-delay:1s;animation-delay:1s;background-color:#f9a951}.see-all-button__wrapper{align-items:center;background-color:#298fc2;box-shadow:1px 1px #fff;color:#fff;display:flex;font-size:16px;left:1.25rem;padding:.5em 1em;position:fixed;top:1.25rem;z-index:999}@media screen and (min-width:1920px){.see-all-button__wrapper{font-size:16px}}@media screen and (max-width:1023px){.see-all-button__wrapper{justify-content:center;position:static;width:100%}}.see-all-button__link{color:#fff;font-size:1.25em;text-decoration:none}.see-all-button__link:active,.see-all-button__link:focus,.see-all-button__link:hover{text-decoration:underline}.see-all-button__chevron{line-height:1;margin-right:0;width:2em}.progress-bar{background:linear-gradient(90deg,#298fc2,#008996 50%,#036);border-bottom:.0625rem solid #fff;height:100%;transition:width 10ms linear;width:0}.progress-bar__wrapper{height:.7rem;left:0;position:fixed;top:0;width:100%;z-index:500}.repeat-button{align-items:center;background-color:#298fc2;color:#fff;display:flex;font-size:1.125em;justify-content:center;padding:0 2em;width:100%}.repeat-button .loop{font-size:2.25em;margin-right:.25em}@media screen and (min-width:576px){.repeat-button{display:none}}.footer{align-items:center;background-color:#053678;box-sizing:border-box;color:#fff;display:flex;flex-direction:column;font-family:Montserrat,sans-serif;margin-bottom:0;padding:2em;width:100%}.footer__pdfLink{color:#fff;font-weight:500;margin-bottom:1.5em}.footer__pdfLink:hover{font-weight:700}.footer__pdfLink span{display:inline-block;margin-right:.5em;vertical-align:middle;width:1.5em}.footer__text{font-size:1em;font-weight:500;margin-bottom:1em;text-align:center}.footer__firstline-link{color:#fff;font-size:1.5em;font-weight:700;margin-bottom:1em;text-align:center;text-decoration:none}.footer__firstline-link:active,.footer__firstline-link:focus,.footer__firstline-link:hover{color:#fff;text-decoration:underline}.footer__logo{margin-bottom:1em;width:20.375em}.footer__repeat-button{align-items:center;background-color:transparent;border:none;box-shadow:none;color:#fff;cursor:pointer;display:flex;font-size:1em;font-weight:500;margin-bottom:1rem;text-align:center}.footer__repeat-button .loop{font-size:2em;margin-right:.5em}@media screen and (max-width:576px){.footer__repeat-button{display:none}}.footer__scrolly-link{color:#fff;font-size:1em;font-weight:500;text-align:center}.footer__scrolly-link:active,.footer__scrolly-link:focus,.footer__scrolly-link:hover{color:#fff;font-weight:700}.part2{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part2{--min-font-size-px:12px;--min-font-size:12;--max-font-size:20;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part2{font-size:20px}}.part2__factory-container{display:flex;height:34.14em;justify-content:center;position:relative;-webkit-transform:translateY(-5em);transform:translateY(-5em);transition:opacity .5s,-webkit-transform .7s;transition:transform .7s,opacity .5s;transition:transform .7s,opacity .5s,-webkit-transform .7s;width:100%}.part2__factory-container.up{-webkit-transform:translateY(-36.8em);transform:translateY(-36.8em)}.part2__factory-container.up-and-away{opacity:0;-webkit-transform:translateY(-66.8em);transform:translateY(-66.8em)}.part2__factory-background{align-items:center;background-color:rgba(41,143,194,.12);background-image:linear-gradient(#fff,#e7f1f7 10%,#e7f1f7);display:flex;justify-content:center;position:absolute;width:47.5em}.part2__factory-background .mask{background-image:linear-gradient(90deg,#fff 0,transparent 11%,transparent 89%,#fff);height:100%;position:absolute;width:100%}.part2__inspector{-webkit-transform:translateX(9em);transform:translateX(9em)}.part2__intro-text{background-color:#0c929d;border-radius:1.75em;bottom:0;color:#fff;font-size:1.125em;padding:1em;position:absolute;-webkit-transform:translate(-3em,-6em);transform:translate(-3em,-6em);width:13.1875em;z-index:2}.part2__intro-text:after{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 100 200' fill='%230c929d'%3E%3Cpath d='M0 0h100v200z'/%3E%3C/svg%3E");background-size:1em 2em;content:" ";height:2em;position:absolute;right:-1em;top:2em;-webkit-transform:rotate(-90deg);transform:rotate(-90deg);width:1em;z-index:10}.part2__inspector{position:absolute;top:10em;width:18.3125em;z-index:3}.part2__conveyor-container{align-items:flex-end;display:flex;height:10em;justify-content:center;overflow:hidden;overflow-x:hidden;position:absolute;-webkit-transform:translateY(10.9em);transform:translateY(10.9em);transition:opacity .5s,-webkit-transform .7s;transition:transform .7s,opacity .5s;transition:transform .7s,opacity .5s,-webkit-transform .7s;width:47.5em;z-index:5}.part2__conveyor-container--2,.part2__conveyor-container--3{opacity:0;-webkit-transform:translateY(40.9em);transform:translateY(40.9em)}.part2__conveyor-container .mask1{background-image:linear-gradient(90deg,#fff 0,transparent 2%,transparent 98%,#fff);height:100%;position:absolute;width:47.5em;z-index:7}.part2__conveyor-container.up{-webkit-transform:translateY(-20.9em);transform:translateY(-20.9em)}.part2__conveyor-container.up-and-away{-webkit-transform:translateY(-50.9em);transform:translateY(-50.9em)}.part2__conveyor-container.bottom{-webkit-transform:translateY(14.9em);transform:translateY(14.9em)}.part2__conveyor{position:absolute;width:50em}.part2__mask-set{z-index:5}.part2__mask-set .mask{position:absolute;top:3.8em;width:9em}.part2__mask-set .mask-1{left:-5em}.part2__mask-set .mask-2{left:5em}.part2__mask-set .mask-3{left:15em}.part2__mask-set .mask-4{left:25em}.part2__mask-set .mask-5{left:35em}.part2__mask-set .mask-6{left:45em}.part2__mask-set--2 .mask-2,.part2__mask-set--2 .mask-4,.part2__mask-set--2 .mask-6,.part2__mask-set--3 .mask{top:2.9em}.part2__feature-mask-container{align-items:center;display:flex;justify-content:center;position:absolute}.part2__feature-mask{position:absolute;transition:opacity .5s,-webkit-transform .7s;transition:transform .7s,opacity .5s;transition:transform .7s,opacity .5s,-webkit-transform .7s;width:9em;z-index:6}.part2__feature-mask--1{left:-8.75em;top:9.7em}.part2__feature-mask--1.up{-webkit-transform:translateY(-31.8em);transform:translateY(-31.8em)}.part2__feature-mask--1.middle{-webkit-transform:translate(-1.9em,-13.4em);transform:translate(-1.9em,-13.4em)}.part2__feature-mask--1.bottom{-webkit-transform:translateY(4em);transform:translateY(4em)}.part2__feature-mask--2{left:1.3em;opacity:0;top:38.8em}.part2__feature-mask--2.bottom{-webkit-transform:translateY(-26em);transform:translateY(-26em)}.part2__feature-mask--2.up{-webkit-transform:translateY(-61.8em);transform:translateY(-61.8em)}.part2__feature-mask--2.middle{-webkit-transform:translateY(-43.4em);transform:translateY(-43.4em)}.part2__text-container{border:.1875em dashed #002d5b;font-size:1.125em;opacity:0;padding:.7em;position:absolute;transition:opacity .5s;width:12.5em}.part2__text-container i{color:#c35322}.part2__text-container--1{-webkit-transform:translate(4em,-2em);transform:translate(4em,-2em)}.part2__text-container--1:before{border-left:.1875em dashed #002d5b;border-top:.1875em dashed #002d5b;content:" ";height:2.0625em;left:-3.9125em;position:absolute;top:4em;width:3.725em}.part2__text-container--2{background-color:#fff;-webkit-transform:translate(-5em,-2em);transform:translate(-5em,-2em);width:10.8125em;z-index:1}.part2__text-container--2 b:last-child{color:#c35322}.part2__text-container--2:before{border-bottom:none;border-top:.1875em dashed #002d5b;height:7.125em;top:-2em;width:10.75em;z-index:0}.part2__text-container--2:after,.part2__text-container--2:before{border-right:.1875em dashed #002d5b;content:" ";left:50%;position:absolute}.part2__text-container--2:after{height:1.7em;top:-1.8875em}.part2__spray-container{align-items:center;display:flex;justify-content:center;position:absolute}.part2__spray-container .spray{position:absolute;width:5em}.part2__spray-container .spray img{-webkit-animation:spraySpray 1.5s infinite;animation:spraySpray 1.5s infinite}@-webkit-keyframes spraySpray{0%{opacity:0;-webkit-transform:scale(.5);transform:scale(.5)}40%{opacity:0}50%{opacity:1}to{opacity:0;-webkit-transform:scale(1);transform:scale(1);-webkit-transform-origin:bottom left;transform-origin:bottom left}}@keyframes spraySpray{0%{opacity:0;-webkit-transform:scale(.5);transform:scale(.5)}40%{opacity:0}50%{opacity:1}to{opacity:0;-webkit-transform:scale(1);transform:scale(1);-webkit-transform-origin:bottom left;transform-origin:bottom left}}.part2__spray-container .spray-1{left:11em;top:-4.5em;-webkit-transform:rotate(-10deg);transform:rotate(-10deg)}.part2__spray-container .spray-2{left:15.6em;top:-14.5em;-webkit-transform:rotate(170deg);transform:rotate(170deg)}.part3{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part3{--min-font-size-px:18px;--min-font-size:18;--max-font-size:28;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);flex-direction:row;font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor));gap:1em}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part3{flex-direction:row;font-size:28px;gap:1em}}.part3__text{font-size:1.125em;margin-bottom:3em;width:19.1875em}.part3__animation-wrapper{align-items:center;display:flex;flex-direction:column}.part3__ff-text{font-weight:700;text-transform:uppercase}.part3__ff-text--filter{color:#007bb7}.part3__ff-text--filter,.part3__ff-text--fit{font-size:2.25em;opacity:0;transition:opacity .5s}.part3__ff-text--fit u{color:#008996}.part3__vd-container{align-items:center;display:flex;justify-content:center;margin-top:2em;position:relative}.part3__vd{opacity:0;transition:opacity .5s,-webkit-transform .5s;transition:transform .5s,opacity .5s;transition:transform .5s,opacity .5s,-webkit-transform .5s;width:10.5em}.part3__vd--left.moved{-webkit-transform:translateX(1.85em);transform:translateX(1.85em)}.part3__vd--right.moved{-webkit-transform:translateX(-1.85em);transform:translateX(-1.85em)}.part3__vd-checkmark{opacity:0;position:absolute;transition:opacity .5s;width:2.325em}.part4{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part4{--min-font-size-px:14px;--min-font-size:14;--max-font-size:20;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part4{font-size:20px}}.part4__background{height:25.75em;position:absolute;-webkit-transform:translate(14.7em,-5.5em);transform:translate(14.7em,-5.5em);z-index:-1}.part4__background img{height:100%;width:auto}@media screen and (min-width:1024px)and (min-height:576px){.part4__background{-webkit-transform:translateY(-5.5em);transform:translateY(-5.5em)}}.part4__text-container{align-items:flex-end;display:flex;height:10.625em}.part4__text{background-color:#298fc2;border-radius:1.25em;color:#fff;margin-bottom:1em;padding:1em 2em;position:relative;width:19.2em}.part4__text:after{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 100 200' fill='%23298fc2'%3E%3Cpath d='M0 0h100v200z'/%3E%3C/svg%3E");background-size:1em 2em;bottom:-2em;content:" ";height:2em;position:absolute;right:5em;width:1em;z-index:10}.part4__text.hide{display:none}.part4__person-container{display:flex}.part4__worker{-webkit-transform:translateX(2.5em);transform:translateX(2.5em);width:11.06em}.part4__presenter{-webkit-transform:translate(-1.8em,2.75em);transform:translate(-1.8em,2.75em);width:14.3125em;z-index:4}.part4__icon-container{align-items:center;display:flex;justify-content:center;position:absolute}.part4__icon-container>div{transition:opacity .5s}.part4__drops{position:absolute;right:-3.5em;top:-7.5em;width:3.5em}@media screen and (min-width:1024px)and (min-height:576px){.part4__drops{left:-13.5em}}.part4__filter{opacity:0;position:absolute;right:-4.2em;top:-8.3em;width:4.8em}@media screen and (min-width:1024px)and (min-height:576px){.part4__filter{left:-14.5em;-webkit-transform:scaleX(-1);transform:scaleX(-1)}}.part4__arrow{position:absolute;width:1.25em}.part4__arrow--left{left:-8.1em;opacity:0;top:-7em}.part4__arrow--right{left:-3em;opacity:0;top:-7em}.part4__straps,.part5{position:absolute}.part5{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part5{--min-font-size-px:18px;--min-font-size:18;--max-font-size:27;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part5{font-size:27px}}.part5__tablet{align-items:center;display:flex;justify-content:center;position:relative;width:20em}.part5__tablet-screen{color:#fff;font-size:1.125em;height:20.6em;overflow:hidden;padding:1em;position:absolute;-webkit-transform:translate(-.11em,-.23em);transform:translate(-.11em,-.23em);width:15.6em}.part5__tablet-screen .section-container{display:flex;height:17.5em;left:0;position:absolute;top:3em;transition:left .2s ease-out;width:62.4em}.part5__tablet-screen .section-container.screen2{left:-15.6em}.part5__tablet-screen .section-container.screen3{left:-31.2em}.part5__tablet-screen .section-container.screen4{left:-46.8em}.part5__tablet-screen .section-container .section{align-items:center;display:flex;flex-basis:15.6em;flex-direction:column;height:17em;justify-content:space-between;padding:0 1em}.part5__tablet-screen .section-container .section__top{display:flex}.part5__tablet-screen .section-container .section__number{display:flex;flex-direction:column;width:2.625em}.part5__tablet-screen .section-container .section__number .number{align-items:center;background-color:#fff;border-radius:50%;color:#008996;display:flex;font-size:1.25em;font-weight:700;height:1.625em;justify-content:center;width:1.625em}.part5__tablet-screen .section-container .section__number .line{border-right:.25em solid #fff;flex:1 1;-webkit-transform:translateX(calc(-50% + .125em));transform:translateX(calc(-50% + .125em))}.part5__tablet-screen .section-container .section__text{font-size:1em;padding-left:.5em}.part5__tablet-screen .section-container .section__icon{padding-top:1em}.part5__tablet-screen .section-container .section__icon--clipboard{width:5.3em}.part5__tablet-screen .section-container .section__icon--mask1,.part5__tablet-screen .section-container .section__icon--mask2{width:7.56em}.part5__tablet-screen .section-container .section__icon--filter{width:11.8em}.part5__tablet-filter{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:rgba(0,0,0,.3);height:23.3em;-webkit-transform:translate(-.16em,-.32em);transform:translate(-.16em,-.32em);width:17.7em}.part5__dialog-box,.part5__tablet-filter{opacity:1;position:absolute;transition:opacity .3s}.part5__dialog-box{background-color:#fff;border:.125em solid #007e8b;border-radius:.5em;color:#007e8b;display:flex;flex-direction:column;height:11.1em;padding:.5em 1em;width:14.56em}.part5__dialog-box .heading{align-items:center;border-bottom:.1725em solid #007e8b;display:flex;font-size:1.25em;font-weight:700;justify-content:center;margin-bottom:.5em;padding-bottom:.25em}.part5__dialog-box .heading .icon{align-items:center;border:2px solid #007e8b;border-radius:50%;display:flex;font-size:1em;height:1.375em;justify-content:center;margin-right:.25em;width:1.375em}.part5__dialog-box .text{font-size:1.125em}.part6{align-items:center;display:flex;flex-direction:column;gap:1rem;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part6{--min-font-size-px:18px;--min-font-size:18;--max-font-size:27;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);flex-direction:row;font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part6{font-size:27px}}.part6__person{width:18.75em}.part6__person,.part6__text-container{align-items:center;display:flex;justify-content:center;position:relative}.part6__text-container{flex-direction:column;margin-top:.5em;width:19.5em}.part6__text{color:#008996;font-size:1.125em;transition:opacity .5s}.part6__text--2,.part6__text--3{opacity:0;position:absolute}.part6__x{position:absolute;-webkit-transform:translate(-8em,-15.5em);transform:translate(-8em,-15.5em)}.part6__germs-container{align-items:center;justify-content:center;position:absolute;transition:opacity .5s}.part6__germ{position:absolute;width:3.5em}.part6__germ--1{left:-10em;top:-4em}.part6__germ--2{left:-10em;top:-9em}.part6__germ--2 img{-webkit-transform:rotate(90deg);transform:rotate(90deg)}.part6__germ--3{left:-8em;top:1em}.part6__germ--3 img{-webkit-transform:rotate(-50deg);transform:rotate(-50deg)}.part6__germ--4{left:4em;top:-11em}.part6__germ--5{left:6em;top:-8em}.part6__germ--5 img{-webkit-transform:rotate(-50deg);transform:rotate(-50deg)}.part6__germ--6{left:4em;top:-16em}.part6__germ--6 img{-webkit-transform:rotate(90deg);transform:rotate(90deg)}.part6__air-container{align-items:center;justify-content:center;position:absolute;transition:opacity .5s}.part6__air{position:absolute;transition:all .5s;width:3.75em}.part6__air--1{left:-10em;top:-4.7em;-webkit-transform:scaleY(-1) rotate(180deg);transform:scaleY(-1) rotate(180deg)}.part6__air--1:after{color:#2584ba;content:"＜";font-size:2.3em;font-weight:300;left:-.75em;opacity:0;position:absolute;top:-.75em;-webkit-transform:rotate(35deg);transform:rotate(35deg);transition:opacity .5s}.part6__air--1.moved{left:-6.9em;top:-3em}.part6__air--1.moved:after{opacity:1}.part6__air--2{left:4em;top:-12.3em}.part6__air--2:before{color:#2584ba;content:"＜";font-size:2.3em;font-weight:300;left:-.75em;opacity:0;position:absolute;top:-.75em;-webkit-transform:rotate(35deg);transform:rotate(35deg);transition:opacity .5s}.part6__air--2.moved{left:2.5em;top:-6.5em;-webkit-transform:rotate(-60deg);transform:rotate(-60deg)}.part6__air--2.moved:before{opacity:1}.part6__mask{opacity:0;position:absolute;-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg);transition:opacity 500m;width:5em}.part6__mask.wiggle{-webkit-animation:wiggle .75s ease-in-out;animation:wiggle .75s ease-in-out}@-webkit-keyframes wiggle{0%{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}25%{-webkit-transform:translate(-.2em,-4em) rotate(-14deg);transform:translate(-.2em,-4em) rotate(-14deg)}50%{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}75%{-webkit-transform:translate(-.2em,-4em) rotate(-14deg);transform:translate(-.2em,-4em) rotate(-14deg)}to{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}}@keyframes wiggle{0%{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}25%{-webkit-transform:translate(-.2em,-4em) rotate(-14deg);transform:translate(-.2em,-4em) rotate(-14deg)}50%{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}75%{-webkit-transform:translate(-.2em,-4em) rotate(-14deg);transform:translate(-.2em,-4em) rotate(-14deg)}to{-webkit-transform:translate(-.2em,-4em) rotate(14deg);transform:translate(-.2em,-4em) rotate(14deg)}}.part7{align-items:center;display:flex;flex-direction:column;height:100%;justify-content:center;overflow:hidden;position:absolute;transition:opacity .5s,background-color .4s;width:100%}.part7.darken{background-color:#00007d}@media screen and (min-width:1024px)and (min-height:576px){.part7{--min-font-size-px:16px;--min-font-size:16;--max-font-size:25;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);flex-direction:row;font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part7{font-size:25px}}.part7__intro-container{display:flex;flex-direction:column;position:absolute;transition:opacity .2s;z-index:3}@media screen and (min-width:1024px)and (min-height:576px){.part7__intro-container{padding-right:10em}}.part7__intro-container .text-bubble{background-color:#008996;border-radius:1.25em;color:#fff;font-size:1.125em;margin-bottom:1em;padding:2em 1.5em;position:relative;width:19.1875em}.part7__intro-container .text-bubble:after{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 100 200' fill='%23008996'%3E%3Cpath d='M0 0h100v200z'/%3E%3C/svg%3E");background-size:1em 2em;bottom:-1.9em;content:" ";height:2em;position:absolute;right:11em;width:1em;z-index:10}.part7__intro-container .person-container{display:flex;position:relative}.part7__intro-container .person-container .worker{width:8.5em}.part7__intro-container .person-container .inspector{-webkit-transform:translate(-3em,2.3em) scaleX(-1);transform:translate(-3em,2.3em) scaleX(-1);width:10.93em}.part7__intro-container:after{border-bottom:.1875em solid #000;content:" ";-webkit-transform:translate(-25%,-5em);transform:translate(-25%,-5em);width:150%;z-index:-1}.part7__screen-container{align-items:center;display:flex;flex-direction:column;position:absolute;transition:-webkit-transform .5s;transition:transform .5s;transition:transform .5s,-webkit-transform .5s}.part7__screen-container.start{-webkit-transform:translate(9em,2em) scale(.72);transform:translate(9em,2em) scale(.72);z-index:1}.part7__screen-container .screen-text{color:#008996;font-size:1.5em;font-weight:700;opacity:0;position:absolute;text-align:center;transition:opacity .5s}.part7__screen-container .screen{border:1px solid gray;transition:opacity .5s;width:21.5em}.part7__screen-container .screen-1{align-items:center;display:flex;justify-content:center;position:relative}.part7__screen-container .screen-10,.part7__screen-container .screen-2,.part7__screen-container .screen-3,.part7__screen-container .screen-4,.part7__screen-container .screen-5,.part7__screen-container .screen-6,.part7__screen-container .screen-7,.part7__screen-container .screen-8,.part7__screen-container .screen-9{opacity:0;position:absolute;top:.9em;width:19.9em}.part7__screen-container .text-container{display:flex;height:14em;padding:1em;width:21.5em}@media screen and (min-width:1024px)and (min-height:576px){.part7__screen-container .text-container{width:40em}}.part7__screen-container .text-container .text{background-color:#fff;color:#008996;padding:1em;position:absolute;transition:opacity .5s}.part7__screen-container .text-container .text-1,.part7__screen-container .text-container .text-2,.part7__screen-container .text-container .text-3,.part7__screen-container .text-container .text-4,.part7__screen-container .text-container .text-5{align-items:center;border:.18725em solid #008996;border-radius:1em;display:flex;font-size:1.125em;font-style:italic;font-weight:700;justify-content:center;min-height:6.25em;opacity:0;padding:1em;text-align:center;width:calc(100% - 2em)}.part7__screen-container .text-container .text-1:before,.part7__screen-container .text-container .text-2:before,.part7__screen-container .text-container .text-3:before,.part7__screen-container .text-container .text-4:before,.part7__screen-container .text-container .text-5:before{border-right:.18725em solid #008996;content:" ";height:6.2em;left:15em;position:absolute;top:-4.5em;-webkit-transform:rotate(-45deg);transform:rotate(-45deg)}.part7__screen-container .text-container .text-6,.part7__screen-container .text-container .text-7,.part7__screen-container .text-container .text-8,.part7__screen-container .text-container .text-9{align-items:center;background-color:#010137;display:flex;opacity:0}.part7__screen-container .text-container .text-6 .letter,.part7__screen-container .text-container .text-7 .letter,.part7__screen-container .text-container .text-8 .letter,.part7__screen-container .text-container .text-9 .letter{align-items:center;background-color:#008996;color:#fff;display:flex;font-size:2.25em;font-weight:700;height:3.125em;justify-content:center;width:3.125em}.part7__screen-container .text-container .text-6 p,.part7__screen-container .text-container .text-7 p,.part7__screen-container .text-container .text-8 p,.part7__screen-container .text-container .text-9 p{color:#008996;color:#fff;flex:1 1;font-size:1.25em;padding-left:1em}.part7__hand-container{display:flex;flex-direction:column;left:-20em;opacity:0;position:absolute;position:relative;transition:all .5s;width:13.09em}.part7__hand-container.show{left:0;opacity:1}.part7__hand-container .question{background-color:#fff;border:.1875em solid #008996;border-radius:1.875em;color:#008996;font-size:1.375em;font-weight:700;padding:3em 1em;position:relative}@media screen and (min-width:1024px)and (min-height:576px){.part7__hand-container .question{-webkit-transform:translateX(-10rem);transform:translateX(-10rem);width:40rem}}.part7__hand-container .question:before{align-items:center;background-color:#008996;color:#fff;content:"Q.";display:flex;font-size:2.25em;height:1.9375em;justify-content:center;left:-1em;position:absolute;top:-1em;width:1.9375em}.part7__hand-container .question:after{border-right:.1875em solid #008996;bottom:-2em;content:" ";height:4em;left:6.5em;position:absolute;-webkit-transform:rotate(45deg);transform:rotate(45deg)}.part7__hand-container .hand{bottom:-25em;left:-6.7em;position:absolute;-webkit-transform:translateX(0) rotate(45deg);transform:translateX(0) rotate(45deg);width:8em}@media screen and (min-width:1024px)and (min-height:576px){.part7__hand-container .hand{-webkit-transform:translateX(-5em) rotate(45deg);transform:translateX(-5em) rotate(45deg)}}.part8{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part8{--min-font-size-px:16px;--min-font-size:16;--max-font-size:30;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);flex-direction:row;font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part8{font-size:30px}}.part8__clipboard{align-items:center;display:flex;justify-content:center;position:relative;width:19.375em}.part8__text{font-family:Marydale,serif;font-size:1.125em;position:absolute;-webkit-transform:rotate(348deg);transform:rotate(348deg);width:11em}.part8__text .tip{font-size:2.2em;text-align:center}.part9{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part9{--min-font-size-px:14px;--min-font-size:14;--max-font-size:21;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part9{font-size:21px}}.part9__background{position:absolute;-webkit-transform:translateY(-3.5em);transform:translateY(-3.5em);width:45.375em;z-index:-1}.part9__text{background-color:#008996;border-radius:1.25em;color:#fff;font-size:1.125em;opacity:0;padding:1.5em 1.3em;position:relative;width:19.1875em}.part9__text:after{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300' viewBox='0 0 100 200' fill='%23008996'%3E%3Cpath d='M0 0h100v200z'/%3E%3C/svg%3E");background-size:1em 2em;bottom:-2em;content:" ";height:2em;position:absolute;right:6em;width:1em;z-index:10}@-webkit-keyframes backInDown{0%{opacity:.3;-webkit-transform:translateY(-10em) scale(.3);transform:translateY(-10em) scale(.3)}33%{opacity:.7;-webkit-transform:translateY(-5em) scale(.5);transform:translateY(-5em) scale(.5)}66%{opacity:.9;-webkit-transform:translateY(0) scale(.7);transform:translateY(0) scale(.7)}to{opacity:1;-webkit-transform:scale(1);transform:scale(1)}}@keyframes backInDown{0%{opacity:.3;-webkit-transform:translateY(-10em) scale(.3);transform:translateY(-10em) scale(.3)}33%{opacity:.7;-webkit-transform:translateY(-5em) scale(.5);transform:translateY(-5em) scale(.5)}66%{opacity:.9;-webkit-transform:translateY(0) scale(.7);transform:translateY(0) scale(.7)}to{opacity:1;-webkit-transform:scale(1);transform:scale(1)}}.part9__text.back-in{-webkit-animation:backInDown .15s ease-in;animation:backInDown .15s ease-in;-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards}.part9__person-container{display:flex;margin-top:1em}.part9__worker{-webkit-transform:translateX(2em);transform:translateX(2em);width:10.25em}.part9__inspector{-webkit-transform:translate(-2em,1.25em);transform:translate(-2em,1.25em);width:13.93em}.part10{align-items:center;display:flex;flex-direction:column;height:calc(100% - .7rem);justify-content:center;margin-top:.7rem;overflow-x:hidden;position:absolute;width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part10{--min-font-size-px:18px;--min-font-size:18;--max-font-size:27;--width-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vw - 1024px)/1536);--height-scaling-factor:calc((var(--max-font-size) - var(--min-font-size))*(100vh - 576px)/864);font-size:calc(var(--min-font-size-px) + var(--width-scaling-factor) + var(--height-scaling-factor))}}@media screen and (min-height:1441px),screen and (min-width:2561px){.part10{font-size:27px}}.part10__logo-container{align-items:center;display:flex;margin-bottom:2em}@media screen and (min-width:1024px)and (min-height:576px){.part10__logo-container{align-items:center;flex-direction:column-reverse;justify-content:center}}.part10__logo{width:10.125em}.part10__checkmark{display:flex;justify-content:center;margin-right:.5em;width:2.625em}@media screen and (min-width:1024px)and (min-height:576px){.part10__checkmark{margin-right:0;width:2em}}.part10__text{font-size:1.125em;line-height:1.4;padding-bottom:18em;width:18.4375em}.part10__text span{border-bottom:1px solid #fff;border-top:2px solid #fff;display:inline-block;padding:0 .2em}.part10__text .highlight{background-color:#fff734;transition:background-color .7s ease-out}@media screen and (min-width:1024px)and (min-height:576px){.part10__text{padding-bottom:0}}.part10__upper-wrapper{align-items:center;display:flex;flex-direction:column;justify-content:center}@media screen and (min-width:1024px)and (min-height:576px){.part10__upper-wrapper{flex-direction:row;gap:2em;padding-bottom:13em}}.part10__conveyor2{background-image:url(/learn/interactive/what-is-an-n95/static/media/NNPHI-conveyer-belt_6.d37faad3cfdaefefef04.gif);background-repeat:repeat-x;background-size:auto 10em;height:15em;position:absolute;-webkit-transform:translateY(7em);transform:translateY(7em);width:100%}@media screen and (min-width:1024px)and (min-height:576px){.part10__conveyor2{height:10em}}.skip-links{position:relative;width:100%;z-index:10000}.skip-links .skip{height:1px;left:-10000px;overflow:hidden;position:absolute;top:auto;width:1px}.skip-links .skip:focus{background-color:#6e3568;box-shadow:none;color:#fff;display:block;height:auto;margin:2px;outline:2px solid #f9a951;outline-offset:0;padding:20px 40px;position:static;text-align:center;text-decoration:none;width:auto}.skip-links .skip:focus .keyboardText{display:block;margin:0 auto;max-width:80ch}
/*# sourceMappingURL=main.7b106309.css.map*/