Filter King Blog

Central air cools your whole home by moving heat outside with refrigerant. Learn how the cycle works, the parts, split vs packaged systems, and efficiency.

Heat kills dust mites fastest. Learn how to get rid of dust mites in your bed, carpet, and furniture, and how to keep them from coming back.

Check for dust mites with an allergy test, a home test kit, or a microscope. See what dust mites look like and the signs they're in your home.

Our winter HVAC maintenance checklist covers filters, a fall tune-up, carbon monoxide alarms, vents, thermostats, and heat pumps, so your heat is ready.

A washable air filter can last for years, but most catch fewer small particles than disposable pleated filters. Compare them and learn how to clean one.

MERV 8 suits homes without allergies, while MERV 11 adds fine dust, smoke, and smog particles for homes with pets, kids, or allergies. Compare them side by side.

FPR is The Home Depot's air filter rating and MERV is the industry standard. See what FPR and MPR mean, how they convert to MERV, and which rating to use.

Most homes need a MERV 8, MERV 11, or MERV 13 air filter. See the MERV rating chart, what each range removes, and how MERV compares to MPR and FPR.

The best furnace filter for most homes with pets is a pleated MERV 11. Compare filter types for pet dander and odors, and learn how often to change filters with pets.

A carbon air filter traps odors and VOCs that standard filters miss. Learn how it works, its limits, how often to change it, and when a higher MERV filter is better.

An air filter cleans the air for your whole home, while an air purifier cleans one room. Compare how they work, what they remove, costs, and when to use both.

The best air filter for most homes is a pleated MERV 8 to MERV 13 filter in the right size. Compare six popular filters on the same criteria and find the right rating for pets, all...