Pin kit · Air Purifier Sizing
300 sq ft needs 195 CADR
Every page on this site ships with its own pin artwork, drawn from the same EPA-sourced figures as the article, nothing on the pin that the page cannot prove.
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The vertical pin is served at a stable URL (roomandfilter.com/pin/air-purifier-for-a-300-square-foot-room/image) so the media travels with the pin wherever it is saved.
What the pin points at
EPA publishes a minimum clean air delivery rate of 195 cfm for a 300 square foot room, assuming an eight-foot ceiling.
- Board
- Air Purifier Sizing
- Pillar
- Sizing & CADR
- Read time
- 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.