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Name: EPA minimum CADR by room area
Creator: U.S. Environmental Protection Agency
License: https://www.epa.gov/indoor-air-quality-iaq/guide-air-cleaners-home

Every page states one thing and cites its figure. Search by room, pollutant or rating term.

Room & Filter

The air cleaner that is actually big enough for the room. Sizing from the EPA's published minimum CADR, and honest refusals where no figure exists.

Pillars

Sizing & CADR
Room by Room
What You're Removing
Filters & Ratings
Buying & Equipment

Source of record

Every published figure on this site comes from one place:

U.S. Environmental Protection Agency, Guide to Air Cleaners in the Home (2nd edition)

Retrieved 2026-08-30. No interpolation, ever.

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