Why you should care that our covers filter to 0.3 microns

Just to put things in perspective, a human hair is somewhere in the neighborhood of 50-70 microns, and pollen is around 10 microns. The fine sand, also known as “moon dust,” found in places such as Afghanistan and Iraq, is 1 micron.

HEPA Tower Air Purifier (250 sq. ft.)

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A very effective Air Purifier sold in Southern California Costco

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Why does HEPA filters have 0.3 micron pore size?

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