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Mitsubishi MS12TN Air Filter
It is recommended that the air filter is exchanged for a new one every 3 months for optimal air quality inside the house. The height, length and width of the filter is not really a choice of options but rather a requirement of your furnace or handler. Filters for your Mitsubishi MS12TN come in many styles and sizings, in which the one you choose will depend on your choice for how clean you want the air and the specific size of filter you need for your system.
Clues to watch for to know the air filter has to be replaced
- If you place a light source behind it, the light will hardly infiltrate to the opposite side of the filter at all
- Manufacturers have recommended to replace your air filter about every 90 days to keep the unit running efficiently
- The system filter looks gray or brown and the best thing to do would be to replace it now
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