Pin kit · Filters and Replacement
What Is a True HEPA Filter? True HEPA vs HEPA-Type
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What the pin points at
True HEPA means the filter meets the 99.97%-at-0.3-micron definition. How to tell it from "HEPA-type" and "HEPA-like" labels, and which number to trust.
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- Filters and Replacement
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- Filters & Ratings
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- 3 min
Figures from the U.S. Environmental Protection Agency, retrieved 2026-08-30. This site shows no prices, by policy, the pin does not either.