Here are the most common problems that crop up with window and central air conditioners—many you can fix yourself—plus CR's ...

The advice is always the same: Change the air filters for your home's heating and air conditioning system every 90 days. But also: Do it more often if you have pets or allergies. How often is more ...

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 ...

Remembering to change the filters in your HVAC system can be harder than it sounds. In addition to changing them on a regular schedule, per manufacturer instructions, you might need to change filters ...

On average, Americans spend 90% of their time indoors, breathing indoor air. But did you know that indoor air can be two to five times more polluted than the air outside? The good news is that there ...

It's always in the middle of a heatwave. Your AC hums to life, but instead of the icy rush you're craving, it pushes out a faint, lukewarm breeze. That's when the dread sets in. Is the unit failing?