What type of air filtration does HEPA refer to?

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HEPA, which stands for High-Efficiency Particulate Air, refers to a type of air filtration that captures particles with a high level of efficiency. The most critical aspect of HEPA filters is their ability to capture at least 99.97% of airborne particles that are 0.3 microns in diameter. This is particularly significant because 0.3 microns is the most penetrating particle size, meaning that it represents a challenge for many filtration systems. Thus, by effectively filtering out this particle size and larger ones, HEPA filters provide a superior level of air quality.

The effectiveness of HEPA filters in removing fine particulates makes them an essential component in environments requiring high air quality, such as hospitals, laboratories, and various industrial settings. Understanding this filtration capability is key for professionals in the field, especially in managing lead and other hazardous substances.

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