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Friedrich US14B30A Filter
A changeable air filter has the basic duty of filtering out dust and other particles from the inside air inside the home. This helps protect the unit and help it be a lot better at doing its job while cleaning the dust out of the air you breathe all day. During regular maintenance the filter should be simply replaced or possible scrubbed clean at least twice a year if not more, in order to keep things clean.
Subtle cues to watch for in a bad dust filter
- If you lift the air filter up to a source of bright light, the light does not permeate to the other side of a dirt-packed filter
- Filter appears dirty and congested completely
- Manufacturers have recommended to replace the filter about every three months to help prevent bacteria from spreading too much
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