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Lennox XP14-024 Air Filter
HVAC specialists suggest that the air filter is swapped out every 90 days or so for optimal air quality in the home. The dimensions of the air filter can not be a choice that needs to be made due to the constraint of the availability of room of your HVAC blower system. Filters come in a wide array of filtering levels, in which the one you choose will depend on your choice for how clean you want the air and the specific size of filter you need for your system.
How do you know when your main filter is not working right?
- With a light behind the air filter, the light does not shine on the opposite side of a very dirty air filter
- The unit air filter looks bad and probably should be replaced before tomorrow
- Professionals have recommended to switch out the air filter in your unit about every three months to help prevent mold and bacteria build-up
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