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Carrier 51CM Air Filter
HVAC specialists suggest the your furnace filter is changed every 90 days or so to maintain the best air quality throughout the home. The actual dimensions of the filter is not really a choice that needs to be made due to the requirement of your system. Filters come in a wide array of types and sizes, which all depends on your personal choice for how clean you want the air and whether anyone suffers from allergies in the home.
Symptoms your main filter is failing
- Professionals have recommended to replace your air filter every 90 days in order to have clean air running through the unit
- The unit air filter looks dusty and should be replaced as soon as you can
- As you face it toward a light source, it will almost not breach the other side of the air filter
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