Why do I have 2 air filters?
Why do I have 2 air filters? Scenario 1: Your HVAC system has multiple return ducts. This is the most common reason why your central air system has two air filters. Having multiple return vents solves this problem, but it also requires air filters at each vent to properly filter the air and prevent particulates from getting into your fan motor. Does air intake affect AC? While a soiled cabin air filter can affect the AC system, a dirty engine air filter can cause engine performance problems. Replacing an old engine air filter can go a long way towards increasing...