Tag: HEPA filter

Do-you-really-need-a-HEPA-filter

What is a HEPA filter? Do you need one in your vacuum?

HEPA is not material. HEPA (High-Efficiency Particulate Arresting) is a standard of filtration. Specifically, the standard requires that (99.97%  of all particulate as large as .3 microns is trapped within the filter. The designation of HEPA is awarded by certified testing laboratories. There is nothing however in the rules that define how long the filter […]