camarocoupe
You can probably by a car air purifier at radio shack or the source. I bought mine at radio shack and it works great.

mad dawg
you can pretty much buy them anyone where, from gas stations to your local drugstore such as Longs. Sometimes you are even lucky and you can get them at Target. Also Craig and auto supply.

purifieron
yes, you can buy this anywhere. but you can also buy one from a B&Y air purifier's dealer. They have LCD air purifier for car, and very good looking.

curtisitruck
here's what i do. i don't like smell goods on the market, so once a month i stick a couple of dryer sheets under my car seats.