Observed arrival · 2026-10-22
PureAirIndex measures air purifiers, not their marketing
A directory and set of calculators compare 247 ENERGY STAR-certified air purifier models by clean-air delivery, room coverage, and electricity use.
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- People comparing room air purifiers and their running costs
- Worth noticing
- Its listed median annual energy cost is $24.32, calculated at an electricity rate of $0.16 per kWh.
Field notes
The homepage reports 247 certified models across 72 brands, with a median EPA room-size figure of 250 square feet and median annual energy cost of $24.32 at $0.16 per kWh. Its research menu includes comparisons of CADR per watt and pollen-versus-smoke ratings, including a reported group of 24 models that reverse the usual pattern and a 450-cfm cluster. The site distinguishes listed measurements from calculated scenarios.
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Editorial observations of this landing page, not a rating.
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