What You Should Know About Air Filters

What You Should Know About Air Filters

air filter

While your air filter in your heating and cooling system might look like a flimsy piece of equipment, it’s capable of a lot more than you know. It’s your first line of defense for better indoor air quality, and when your system is running, you want that extra line of protection.

Your air filter needs to be replaced regularly, which we can do for you during routine maintenance appointments.

Here’s what else you should know about your air filter:

  • Why Air Filters? Air filters protect your heating and air conditioning equipment from dust and dirt, while providing your home with fresh, clean air.
  • One Size Does Not Fit All Air filters come in a multitude of sizes and types. You need to know exactly what size and type of filter your air conditioner uses—some might be standard (1-, 2-, 4- and 6-inch widths) or sometimes custom sizes.
  • Dirty Air Filters = Broken Air Conditioner If you don’t change your air filter on a regular basis, you could end up paying more in the end when your air conditioner needs replaced. Yep, that flimsy air filter can take down your metal monster of an air conditioner because when an air filter is dirty, airflow is restricted. That restriction places additional strain to the air handler fan motor, causing it to burn out, overheat and fail.
  • MERV who? MERV stands for Minimum Efficiency Rating Value, which is the industry standard for air filters. The lowest efficiency starts at 1 and goes to the highest, 16, grading how effective the air filter is a capturing dust and holding it.
  • Bigger Doesn’t Always Mean Better Knowing that the highest MERV rating is 16, don’t go out buying only 16s—not all air filters are made for all air conditioners, and the highest-rated filter might actually restrict airflow. Again, know your air conditioner and its requirements to ensure you purchase the best fitting filter for the best performance.
  • Can’t I Just Vacuum It? Disposable air filters are disposable for a reason—trying to vacuum the filter will only loosen and release the dirt and dust (and toxins, eww) from the filter and turn them loose in your home. Trying to wash the filter will not only damage it, but it won’t be able to dry well enough, causing mold and bacteria to grow (again, eww).
  • Think Three Just as there are four seasons in a year (yes, even in Arizona), think about checking and changing your air filter four times a year—every three months.

If you have any questions about air filters, contact the HVAC professionals. We have been serving the Phoenix area since 1974!