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Carrier FY4ANF042000 Air Filter
Professionals in the industry advise that the filter gets replaced every 3 months to maintain the best air quality in the home. The dimensions of the air filter can not be a optional choice because of the constraint of your furnace or handler. Filters come in a wide array of styles and sizings, depending on your choice for how clean you want the air and the specific size of filter you need for your system.
Subtle hints your main filter probably needs to be replaced
- It is highly suggested to switch out the air filter in your unit about every 90 days to help prevent bacteria from spreading too much
- The filter looks dusty and it would be best to replace it right now
- If you place a light source behind it, the light will hardly breach the other side of a dirt-packed filter
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