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Nordyne FG7SK Air Filter
It is advised that the air filter is replaced for a clean one every 90 days or so due to the filter clogging up and restricting the flow of air throughout the home. Exact measurements of the main system air filter choice you make because of the constraint of your system. All air filters come in many filtering levels, which all depends on your personal demands for clean air and air handler requirements.
Simple signals the primary air filter needs a replacement ASAP
- If you place a light source behind it, the light does not shine through to the other side of the dirt filled filter
- Many pros have advised to replace the filter four times a year to keep the house clean and less dusty
- The filter looks brown and probably should be replaced right away
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