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SPT WA-1222S Filter
The filter in the wall unit has a main job of filtering minute dust particles and other miniscule particles as it is being forced through the system. This filtering system will help make the unit cleaner and make it operate much more efficient while cleaning the air breathe in and out everyday. Due to the amount of dust in the house, this filter should really be simply replaced or cleaned every so often in order to keep things clean.
Major signs the primary air filter needs replacing
- Professionals have advised to replace your air filter four times a year for clean air inside the house
- The unit air filter looks gray or brown and maybe should be replaced without delay
- As you face it toward a light source, it will not permeate to the other side of the dirt filled filter
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