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Lennox 13HPD-018 Air Filter
It is recommended that the air filter gets replaced every 90 days or so because the filter can get clogged and may result in poor air flow in the home. The actual dimensions of the filter is not really a choice that needs to be made but rather a requirement of your furnace or handler. Air Filters are available in many filtering types which all depends on your personal desire for cleaner air and whether anyone suffers from allergies in the home.
Important signs your Lennox air filter is in need of replacing
- Many pros have suggested to replace the filter four times a year to assist in keeping the indoor air clean and fresh
- If you hold it up to the light, it will almost not permeate to the other side of a very dirty air filter
- The system air filter looks dirty and the best thing to do would be to replace it right now
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