What They Do
Many vehicle owners are not aware that their automobiles are outfitted with air cabin filters that trap pollen, dust, and other pollutants before they can enter the cars' interiors and passengers' lungs.
In order for these air cabin filters to remain effective, they should be replaced when they become clogged with soot. If not, they can actually make the air inside a vehicle even worse as they become a pollutant source for the vehicle's air-conditioning and heating blower.
Air cabin filters with activated charcoal go a step further than ordinary filters by absorbing nearly 100% of toxic and foul-smelling gases such as ozone, nitrogen oxide, sulfur dioxide, and hydrocarbons. Regular replacement of these filters eliminates nasty odors and potentially harmful vapors.
TIP: Air cabin filters should generally be changed every 15,000 miles or so.
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