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Lennox G40UH-48B-090X Air Filter
Professionals in the industry advise that the filter is swapped out every 90 days or so to maintain the best air quality through the ducts. Filters are made in lots of filtering types which all depends on your personal choice for how clean you want the air and whether anyone suffers from allergies in the home. The dimensions of the whole house filter optional choice because it is based on the declared size of whoever designed your heating and cooling system.
Signs of a weak main filter
- The main filter looks dirty and could be replaced right away
- Professionals have suggested to swap out your air filter every 90 days in order to have clean air in the home
- When you face it toward a light, the light will barely shine on the opposite side of a completely clogged filter
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Before you decide on buying or purchasing, do your due diligence and cross-check the model number and also make a visual comparison so that you are positive that the proper replacement air filter is being ordered. Replacing the air filter is not difficult assuming you have the know-how and have the tools to get it done.
Feel free to download your manual for help.
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