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Lennox XC17 Air Filter
All air filters come in many filtering types which depends on your particular choice for how clean you want the air and whether anyone suffers from allergies in the home. It is highly recommended that the filter is swapped out every 90 days or so for optimal air quality inside the house. The actual dimensions of the whole house filter choice you make because it is based on the declared size of your air handler.
What are the clues to watch out for to know my primary air filter is on its last leg?
- The filter looks dusty and must be replaced right away
- If you lift the air filter up to a source of bright light, the light will not infiltrate to the opposite side of the dirt filled filter
- Many pros have advised to switch out the air filter in your unit every three months to help keep the air fresh and make the unit run more efficient
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