How often do I need to change or clean my air filters?
HVAC professionals recommend checking your air filters on a monthly basis. There are two types of common air filters: cleanable, and disposable. Disposable filters, usually made from strong cardboard, can be thrown out when they’re clogged and dirty. At this point, they can be replaced with a new filter, which you can find at your local hardware store. Other filters can be cleaned, then put back into place.