Query: air purifier without filter
FIWOTTTDA Air Purifier for Home Large Room 1540 ft² Coverage 5-in-1 H13 True HEPA Filter Reduce 99.97% of Pet Hair, Smoke, Odor, 5 Wind Speed with Air Quality Monitor, 25dB Quiet for Bedroom Office
Dyson Pure Cool, TP04 - HEPA Air Purifier and Tower Fan, White/Silver (Renewed)
RENPHO Air Purifier for Home Bedroom Allergies and Pets Hair, H13 True HEPA Filter, Eliminate 99.97% Odors Smoke Mold Pollen Dust with 3-Stage Filtration System, No Ozone (Air purifier-1. White)
Air Purifier Ionizer, Mini Desktop USB Air Purifiers for Home & Car，One Touch Operation Compact Air Cleaner Purifier for Dust, Smoke, Pollen, Pet Dander, Hay Fever, Cooking
Dyson Pure Cool, TP04 - HEPA Air Purifier and Tower Fan, White/Silver
Ivation Ozone Generator Air Purifier, Ionizer & Deodorizer -Purifies Up to 3,500 Sq/Ft -Great for Dust, Pollen, Pets, Smoke & More Cherry
Airfree T800 Filterless Air Purifier, Small, White
ENVION - Ionic Pro CA200, Compact Air Purifier Tower For Rooms Up to 200 Sq. Ft. (Black)
Envion Ionic Pro Turbo, 500 Sq Feet, Black