Did you know that many cars have a cabin air filter, an “air purifier” built into the air conditioning (AC) system? Automotive aftermarket industry surveys have demonstrated that a majority of vehicle owners are unaware of this feature and whether their car can filter cabin air. Even fewer can find the cabin filter after they are sure their vehicle has one. These filters have been added to vehicles in the last 20 years without much fanfare.
Marketed on European vehicles since the mid 1980’s, cabin air filters began to appear on stateside cars and trucks around 1995. High projected U.S. growth failed to materialize, but now the cabin air filter is common on American and Asian automobiles. Cabin filters, as with air filters generally, do not have standardized terminology.