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Williams 3003622 Filter
The filter in the wall unit was designed for removing small dust molecules and other small elements as it passes through. This simple filter can keep the unit clean and make it operate more efficient while cleaning the dust out of the air you breathe all day. During regular maintenance the filter should be swapped out for a new one or simply cleaned at least twice a year if not more, in order to keep things clean.
Major indications the primary air filter will soon need to be replaced
- Manufacturers have recommended to replace your air filter every season of the year in order to have cleaner breathable air inside
- When you face it toward a light, the light will not shine through the dirt filled filter
- The air filter looks like it is filled with dust and it would be best to replace it as soon as you can
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