Air Filter

Many big cities have problem with quality of air. My idea is to invent some kind of air filter for cars. Using this air filter people that are in car could feel and breath fresh and most of all clean and healthy air. In nowdays respiratory diseases are serious problem. I think it could be milestone in car history. Best regards!
Martin B 12/17/2013
Cannot believe that my 2012 F250 doesn't have one when my son's Ford Fusion does.