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Lennox G43UF-36C-090H Air Filter
HVAC specialists suggest that the filter gets replaced four times a year for optimal air quality through the ducts. All air filters are made in lots of varieties and specific sizes, depending on your air quality needs and air handler size requirements. The actual dimensions of the HVAC air filter choice you make because of the constraint of your air handler.
How do you know if your filter really needs to be replaced?
- Many pros have recommended to replace your air filter every 90 days to help prevent bacteria from spreading too much
- When you hold the filter up to the light, it will hardly infiltrate to the opposite side of a completely clogged filter
- The main filter looks bad and maybe should be replaced real soon
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