LitterMaid Air Cleaner. Model number LMAC100. Your kitty will be sitting pretty when you install this Littermaid air cleaner. Simply clamp it to the litter box, plug it in and the continuous fan action filters out the odors, leaving the air around the box fresh and clean. The fragrance-free Littermaid doesn't mask odors; instead, it simply absorbs them. Includes Littermaid fan assembly and AC adapter. Case Pack 4