This Range Hood Vent Charcoal Filter Kit Can Be Used To Clear The Air From Your Kitchen If Venting Your Range'S Exhaust To The Outside Is Not Possible. The Charcoal Filter Refreshes The Air To Remove Smoke And Airborne Pollutants Before They'Re Recirculated Back Into The Home. If The Current Filter In Your Range Hood Is No Longer Functioning As Expected, Replacing This Accessory May Alleviate The Issue. Replacing This Accessory Will Require Basic Hand Tools, Some Disassembly Of The Vent And Novice Repair Experience. You Must Unplug The Vent Or Shut Off The House Circuit Breaker For The Appliance Before Installing This Accessory.