Air filters are responsible for purifying the air in spaces. Whether it’s home or office, a 16x25x5 furnace filter can help remove dust and other particles from indoor air, allowing you to breathe ...

Q: Can you tell me why it is so important to install the air conditioner filter in a certain direction? What harm, if any, does it do if it's backwards? My husband always puts it in backwards. — Nancy ...

Even in the warmer months of the year, you should regularly monitor your furnace filter's condition -- and replace it as needed -- to keep your family safe and your furnace in good working condition.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Changing your home's air filter is a cheap, simple maintenance project that has a huge impact on a home's ...

Without an air purifier your house can collect a lot of dust and other problems, but purifiers aren't cheap. If you're on a budget, you can create a simple purifier out of a fan and a furnace filter.