3-Stage Filtration traps 99.97% of airborne particles to 0.3 microns. Ideal Room Size: up to 255 sq ft (1 ACH) / 53 sq ft (4.84 ACH). AHAM Verifide Air Purifier tested to ensure performance to reduce tobacco smoke dust and pollen. 3 Fan Speeds: low medium

Details 3-Stage Filtration traps 99.97% of airborne particles to 0.3 microns. Ideal Room Size: up to 255 sq ft (1 ACH) / 53 sq ft (4.84 ACH). AHAM Verifide Air Purifier tested to ensure performance to reduce tobacco smoke dust and pollen. 3 Fan Speeds: low medium or high. Check Filter Indicator lights to check and/or replace the filter. Aromatherapy with a few drops of essential oil (not included). Independently certified CADR. Patented QuietKEAP Technology: noise levels to as low as 25dB.