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 ...

A man kneels while pulling a dirty filter out of a furnace - Backyardproduction/Getty Images Changing your furnace filter is one of those home maintenance chores that's easy to forget until you've got ...