Whisker Vent Odorless Litter Box System with Active Carbon Air Filter The Whisker Vent Litter Box filter system is our most popular system with no installation required All you need to do is change the filter every 4-6 weeks and your litter box will cease to continue causing an odor in your home The DC brushless fan motor will run 24/7 without any concerns of fire because the fan is designed not to overheat It comes with a standard 4 ft. exhaust hose and a 6 ft. power chord Litter Box (19 3/4 x 15 3/4 x 16 1/2) with fan assembly, 6 ft. AC power cord and one Whisker vent active carbon filter No installation, no set up. Plug it in and say goodbye to your litter box odor No maintenance required 24/7 operation utilizing a brushless DC fan motor Extremely quiet and very efficient Makes the litter box cleaner for your cat and will make the air in your house odor free as well which will help to reduce sickness and trips to the veterinarian