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LG AMNH123APM0 Air Filter
The furnace filter can filter out all the dust and other fine particles from the air handler as well as the home. The actual dimensions of the filter is not really a choice you make but rather a requirement of your system. It is suggested that the filter that filters out particles from your home is replaced for a clean one every 90 days or so to maintain the best air quality in the home.
What to see if the main filter is almost bad?
- Many pros have advised to switch out the air filter in your unit about every three months to keep the unit running efficiently
- The system air filter looks like it is filled with dust and probably should be replaced as soon as humanly possible
- If you hold it up to the light, it will hardly show through a dirty filter
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