best hepa air purifier for cigarette smoke Do Purifiers Work Smoke? How They Help With a higher CFM rate of 635 and improved airflow T400 - Tobacco Smoke Air

95% of airborne particles 1 micron

Advertisement - Continue Reading Below How we test air purifiers Philip Friedman Given increased attention to indoor air quality over the last decade, air purifiers are among the products that are continuously tested by experts in the Home Improvement & Outdoor Lab at the Good Housekeeping Institute

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How CR Tests Air Purifiers To evaluate how well these machines trap small particulates from smoke, we inject cigarette smoke particles into a sealed room and use a particle counter to measure the number and size of particles, as small as 0.1 micrometer, in the room as an air purifier works

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