A. Cabin air filters first appeared in US vehicles in 1995 in about 10 percent of vehicles being manufactured. Approximately 80 percent of all new vehicles have such filters in 2007. Cabin air filters do for the passenger compartment of your vehicle what air conditioning filters do for your home. Most manufacturers recommend that they be every 18,000 to 24,000 miles.

At Super-Lube, the charge for cabin air filter replacement is $49.99. If you call around, you will find that most repair shops charge in the area of $65.95 to $89.95 and usually require an appointment to do the job.