第一台高效微粒空气过滤器可以消除空气中的放射性粒子。
The first HEPA filters removed radioactive particles from the air.
考虑买一部高效微粒空气过滤器，最大程度地消除过敏源的存在。
Consider purchasing a HEPA filter to remove the greatest amount of allergens.
很多年以前，美国原子能委员会就开发了高效微粒空气过滤器。
America's Atomic Energy Commission developed HEPA filters many years ago.
美国联邦航空局说现在绝多数大型客机使用高效微粒空气过滤器。
The United States Federal Aviation Administration says most large passenger planes now use HEPA filters.
疾病控制中心认为高效微粒空气过滤器能有效的清理掉空气中很多可致病的微粒。
The Centers for disease Control says HEPA filters are effective in clearing the air of many particles that cause disease.
但研究表明，如今大部分飞机上的高效微粒空气过滤器能够滤掉99.97%的细菌和病毒微粒。
But studies have shown that high-efficiency particulate air (HEPA) filters on most jets today can capture 99.97% of bacterial and virus-carrying particles.
但研究表明，如今大部分飞机上的高效微粒空气过滤器能够滤掉99.97%的细菌和病毒微粒。
But studies have shown that high-efficiency particulate air (HEPA) filters on most jets today can capture 99.97% of bacterial and virus-carrying particles.
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