HEPA Filter
The HEPA filter (High Efficiency Particulate Air) is recognized as the most effective means of filtering airborne microparticles, such as dirt, pollen, bacteria, and any particles larger than 0.3 microns. It is commonly used in hospitals, laboratories, pharmaceutical companies, as well as in air purifiers and vacuum cleaners, especially for allergy sufferers.
There are different types of HEPA filters:
- HEPA 10 filters: remove 85% of particles ≥ 0.3 microns.
- HEPA 11 filters: remove 95% of particles ≥ 0.3 microns.
- HEPA 13 filters: remove 99.75% of particles ≥ 0.3 microns (50 particles of 0.3 microns are released per liter of purified air).
- HEPA 14 filters: remove 99.975% of particles ≥ 0.3 microns (5 particles of 0.3 microns are released per liter of purified air).
To be classified as HEPA, a filter must remove at least 99.97% of particles measuring 0.3 micrometers. HEPA filters are a guarantee of quality for air purifiers.
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