For a filter to be certified high-efficiency particulate air (HEPA), it must be tested and proven to filter particles as small as 0.3 microns to 99.97 percent efficiency at its designed air flow. To ...
HEPA filters are designed to capture at least 99.97% of airborne particles measuring 0.3 microns in diameter, which include pollutants such as dust, pollen, mold spores, and bacteria. “The ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results