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LG LAN121CNM Filter
The air filter has the main responsibility for filtering out dust and other miniscule particles as it is being forced through the system. This simple filter can keep the unit dust-free and make it work a lot better at doing its job while also cleaning the air you breathe. Because it is really easy to do, the air filter must be replaced or possible scrubbed clean periodically depending on how much you use it.
Major clues of a weak dust filter
- The main filter looks like it is filled with dust and must be replaced ASAP
- Manufacturers have suggested to replace your air filter about every 90 days in order to keep the air free from too much dust
- If you lift the air filter up to a source of bright light, the light will not show through the filter
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