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Lennox CB27UH-024 Air Filter
Air Filters come in many styles and sizings, depending on your demands for clean air and air handler size requirements. The dimensions of the air filter can not be a choice of options due to the constraint of the availability of room of the manufacturer of your system. Professionals in the industry advise that the filter gets replaced every 90 days or so as to maintain good airflow inside the house.
Indications of a weakening dust filter
- If you were to lift up the filter, the light will hardly break through to the other side of a clogged air filter
- It is recommended to switch out the air filter in your unit four times a year to keep the air inside clean and free of harmful dust
- The air filter looks gross and probably should be replaced now
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