@critterzoneusa has made a product perfect for my car. After using my SUV as a “dog taxi” for these two, it gets smelly. This device connects via USB ports or a car lighter (provided in the kit) and works perfectly. You never have to change a filter, and you can’t even hear the motor when it’s on… but after a few rides, you can smell the difference. You can breathe in the air.
Michael A.