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Lennox CB30M-46 Air Filter
It is advised the your furnace filter is swapped out four times a year for optimal air quality through the ducts. All air filters come in many filtering levels, in which the one you choose will depend on your choice for how clean you want the air and air handler size requirements. Measurements of the air filter can not be a optional choice because it is based on the declared size of your air handler.
Signs of an unhealthy air filter
- Many pros have suggested to replace the filter about every three months to help purify the air indoors
- The system air filter looks gross and perhaps should be replaced without delay
- If you hold it up to the light, it is unable to permeate to the other side of a very dirty air filter
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