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Lennox CB28UH-024 Air Filter
Professionals in the industry advise the your furnace filter gets replaced every 90 days or so to maintain the best air quality in the home. All air filters are available in many varieties and specific sizes, which depends on your particular desire for cleaner air and whether anyone suffers from allergies in the home. The size of the filter is not really a choice that needs to be made because it is based on the declared size of whoever designed your heating and cooling system.
Important signs your filter will soon need to be replaced
- The filter looks like it is filled with dust and the best thing to do would be to replace it now
- It is recommended to switch out the air filter in your unit four times a year to keep the unit running efficiently
- When you hold the filter up to the light, it will almost not show on the other side the dirt filled filter
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