How to clean an air conditioner filter Before you call in the professionals, here’s how to change the filter yourself. Turn off the unit Before working with anything electrical, always turn it ...

Changing your home's air filter is a cheap, simple maintenance project that has a huge impact on a home's comfort, health, and efficiency. Yet, many homeowners don’t even realize they have an air ...

First, make sure your air conditioner is unplugged, then take off the front panel and remove the filter. If it's covered in dust or hair, use a vacuum to clear away as much debris as you can. From ...

A reader wonders how often to change furnace filters to keep the air clean in her home. Learn the frequency with which homeowners should replace a furnace filter.