Clearing the Air: The Truth about Furnaces and AC Filters

When it comes to breathing in healthy air, and keeping asthma and breathing problems at bay, furnace filters and AC filters are much more important than you think. According to the U.S. Environmental Protection Agency, indoor air is two to five times more polluted than outdoor air. This article will help you make informed decisions as to the replacement of your furnace filters and air conditioner filters and how to care for them.

  • True or false: AC filters and/or furnace filters need to be changed every month.

True. You should be changing your filter every month, especially if you have allergies or asthma. By changing your air conditioner filter monthly, you’ll prevent dirt from contaminating the system, thus extending the life of your system. Many filters have the ability to provide relief for allergy and asthma sufferers because they trap mold, pet dander, pollen, bacteria, and many airborne particles.

Simply changing your air conditioner filters or furnace filters once a month is not enough to ensure healthy, clean air. You should also have your air conditioning and/or furnace unit serviced by a licensed Air Conditioning/Furnace Contractor at least once a year.

  • True or false: You can only purchase HEPA Air Filters.

False. There are many types of air conditioner filters and furnace filters to choose from. They work as air cleaner filters and vary in level of efficiency, design, and quality. There is no “best” air conditioner or furnace filter, as there are positive and negative characteristics to each. It’s important to research the different types of filters and find one that suits your individual needs. The type of AC filters and/or furnace filters available include:

  • Electrostatic Air Filters;
  • Pre Cut Media Air Filter Pads;
  • Pleated Air Filters;
  • Activated Carbon Air Filters;
  • Fiberglass Panel Filters; and
  • HEPA Air Filters.

  • True or false: The brand names are important when it comes to air conditioning filters and furnace filters.

False. Actually, brands have little, if any, importance at all when it comes to home air filters. The brands of most AC filters and furnace filters are interchangeable.

  • True or false: When shopping for a replacement air conditioning filter or furnace filter, you need to know the exact size of the filter.

True. In fact, you need to know the exact length, width, and thickness, as the dimensions are usually not exact. If you have an unusual size, most online suppliers offer custom sizing.

  • True or false: All furnaces have a filter.

False. If you have a warm air furnace then you have an air filter. If you have a boiler or radiator, chances are, you most likely do not have an air filter.

Article Author

We provide exceptional service and complete home comfort solutions in Toronto, Oakville, Mississauga, Burlington, Hamilton, and everywhere in the GTA! From furnaces and air conditioners to indoor air quality equipment, custom HVAC solutions, and more, we will work tirelessly to earn your trust.

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