AHAM Verified Performance: Verified performance provides trusted validation of air purifer capabilites. Air Purifier is independently tested and Verified with a Cean Air Delivery Rate It refreshes the airevery 12.4 minutes in rooms up to. Based on 1 air change per hour, it covers spaces up to 856sq.ft.Faster Air Refreshment Refresh yourair faster by reducing partides and odors,helping your whole family enjoy cleaner air sooner. Powered by, thearge air intake and spiral airflow design deliver 68% higher intake efficieny than previous models for faster air circulation. The 3 in 1 fiter combines afilter,fiter, activated carbon layer to capture up to 99.97% of partices as small incuding, polen dust and smoke, while helping reduce odors.Quiet Purification Experience: Enjoy deaner air without disruptive noise while seeping. relaxing, or working. Powered technology. the purifiercombines a high-efficiengy motor with bottom airintake and spiral airflow design to optimize aiflowand reduce noise. Operating as quietly. it delivers Deaceful purification, while Sleep Mode tums off display lights fora more comfortable night's rest.Tested by a third party using Air Purifier 338 at the