LOL...Jani I know what you mean....Initially a friend and I were wondering there's gotta be a filter somewhere cause I don't see dirt flying in the vents. The guy at Mieneke said its been some sort of firewall (still dont know what that means!) and takes considerable labor to get access to it. Started tinkering with the car but never could find it. Finally, saw a Sears mechanic do it. Its behind the stupid glove box...some firewall eh!!!!