Long-Term Odor Solution: Quiet Fan Pulls In Unwanted Smells That Are Trapped and Neutralized by the 3 Replaceable Carbon Filters, Bringing Fresh Air Back Into Rooms Up to 10 Ft. X 10 Ft. Fresh Scent: The Green Meadow Cartridge Offers a Light, Fresh Scent That Replaces Unwanted Odors. Traps and Neutralizes Common Household Odors: Terrific for Eliminating Kitchen, Bathroom, Pet, and Tobacco Odors. Also Good for Workrooms and Trash Rooms Easy to Use: Simple 2-Speed Control Offers Versatility for Maximum Odor Elimination Eliminates Odors and Freshens Air for up to 3 Months: Includes Filter Replacement Indicator to Let You Know When It Is Time to Change the Filter Replacement Filters Available: Use Any Trueair Replacement Filter for Common Household, Pets, Tobacco or Green Meadow Scent Cartridge. Models Include 04230g, 04231gw, 04234g, 04290g, 04291g, 04294g and 04600.