AeraMax 290 Large Room Air Purifier P8442

4-stage hospital-type filtration: effectively purifies air in large rooms 300 - 600 square feet   AeraSmart™ sensor: monitors the air quality and automatically adjusts the fan speed to keep your air purified True HEPA filter with AeraSafe™ antimicrobial treatment: safely removes 99.97% of viruses, germs, allergens, mold and dust PlasmaTrue™ Technology: optional setting that utilizes ionization to help safely remove airborne pollutants Aera+™ mode: increases air change by 35% for allergy and cold/flu seasons