AHAM & CADR (FAQ#14)

AHAM & CADR (FAQ#14) AHAM testing is generally flawed. It calls its test CADR or Clean Air Delivery Rate * AHAM does not create realistic test conditions for particle removal. * AHAM only tests removal of the largest 20% of particles present in indoor air. * AHAM ignores the removal of ultra-fine particles. * AHAM doesn’t look at the way particles are eliminated. * AHAM favors air cleaners which deposit particles in the room like ionizers. * AHAM does not measure performance for gases and odors. Many consumers buy air cleaners for the control of gaseous pollutants and odors. * AHAM does not measure long-term performance. The values represent performance that can be expected during the first 72 hours of use. Most air cleaners are used for 5,000 hours before filters are replaced. The performance over this span is often drastically lower.