HoMedics Totalclean 4in1 Tower Air Purifier360 HEPA type filtration removes up to 99% of airborne allergens as small as 0. 3 microns Carbon odor filter reduces odors and VOCs Prefilter captures large particles Ionizer with on off 2 speeds Night light with on off Smoke CADR: 57. 8 Small rooms 89. 5 sq. ft. Cleans the air in an 89. 5 sq. ft. room every 12. 5 minutes Essential oil tray with 3 pads Replace filter indicator, carry handle