Quiet and Efficient: Quiet Fan Pulls in Unwanted Smells That Are Trapped and Neutralized by the Replaceable Carbon Filter, Bringing Fresh Air Back Into Your Home. 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 On/Off Switch for Maximum Odor Elimination. Unit Plugs Directly Into Any 110 Volt Outlet.Do not use detergent, solvents, or spray cleaners 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.