PM2.5 Filters

PM2.5 refers to atmospheric particulate matter (PM) that have a diameter of fewer than 2.5 micrometers, which is about 3% the diameter of a human hair. Commonly written as PM2.5, particles in this category are so small that they can only be detected with an electron microscope.

★ Each pack comes with 6 filters
★ Reusable (recommended up to 7 days)
★ These filters are not washable
★ 3" x 4.5" (easily fits Cocktail Critters masks)

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