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LG LMN120HE Air Filter
It is suggested that the air filter gets replaced every 3 months to maintain the best air quality in the home. Measurements of the air filter can not be a choice you make due to the constraint of the availability of room of whoever designed your heating and cooling system. LG LMN120HE filters exist in many different varieties and specific sizes, which depends on your particular demands for clean air and whether anyone suffers from allergies in the home.
General warnings of a bad main filter
- The main filter looks brown and probably should be replaced as soon as you can
- If you place a light source behind it, the light will hardly permeate to the other side of the air filter
- It is highly suggested to replace your air filter every 90 days to keep the air fresh for the family
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