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Lennox 13ACX-036 Air Filter
Air Filters exist in many different filtering levels, which all depends on your personal choice for how clean you want the air and air handler requirements. It is advised that the air filter gets replaced every 90 days or so to maintain the best air quality inside the house. The actual dimensions of the filter is not really a choice you make because it is based on the declared size of the manufacturer of your system.
What are the clues to watch out for to know my dust filter is about to stop working?
- When you face it toward a light, the light will barely penetrate through a very dirty air filter
- The main filter looks dirty and replacing it would be best soon
- It is greatly advised to swap out your air filter about every 90 days so as to have cleaner breathable air
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