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High Efficiency Particulate Absorption (HEPA)

Definition - What does High Efficiency Particulate Absorption (HEPA) mean?

High efficiency particulate absorption (HEPA) is a type of filter that cleans the air of up to 99.97 percent of particles that are 0.3 micrometers or larger. Filters that meet HEPA standards are often used in medical facilities, automobiles, aircraft and homes. HEPA technology is also used in high technology industries such as aerospace, pharmaceuticals, nuclear power and the construction of computer chips.

Safeopedia explains High Efficiency Particulate Absorption (HEPA)

The first HEPA filter was designed to be used to filter airborne radioactive contaminants use in the Manhattan Project of the 1940s. Today, this highly efficient air filter achieves the same filter performance as NIOSH N100 rated respirator filters. For workers who deal with hazardous chemical, biological or radioactive particles, HEPA filters can be used to filter the air, and are even used in vacuum cleaners used to clean up the dust and debris in these workplaces.

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