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Carrier 39-3SI Air Filter
It is recommended that the air filter gets replaced four times a year to maintain the best air quality through the ducts. Air Filters come in a wide array of types and sizes, which depends on your particular choice for how clean you want the air and whether anyone suffers from allergies in the home. The measurement proportions of the air filter can not be a personal choice because it is based on the declared size of your furnace or handler.
Hints your filter is not going to last much longer
- The main filter looks very bad and must be replaced real soon
- When you hold the filter up to the light, it does not shine through a dirty filter
- Manufacturers have advised to switch out the air filter in your unit four times a year to help clean the indoor air
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