Your Vehicle's Cabin Air Filter
Many vehicle manufacturers suggest your vehicle's cabin air filter be replaced every 12,000 to 15,000 miles, or annually. What is a cabin air filter, you ask? That is a good question considering many motorists don't even know their vehicle has a cabin air filter. It's out of sight and out of mind, but that's not where it should stay. Most vehicles today come factory equipped with a cabin air filter. The cabin air filter is designed to do three things:
- Improve the quality of the air entering the passenger compartment through the heating, ventilation, and air-conditioning (HVAC) system.
- Catch dirt, dust, pollen, mold spores, smog, and other airborne material that can make riding in a vehicle unpleasant and unhealthy, particularly if you or your passengers have allergies or other respiratory issues.
- Keep debris out of the HVAC system evaporator and heater core, thereby preventing them from clogging and becoming ineffective.
- Reduced air flow through your air ducts, such as when you crank up the blower fan to the highest position and get more noise than results.
- There is increased noise in the blower fan when you increase the fan speed. This is due to the fan working harder to bring in fresh and filtered air through the dirty filter.
- Persistent foul odors or musty smells in the cabin of your vehicle.