Question: I have a whole house electric AC with gas heat in my home, which is approximately 1800 sq ft. There are 2 return air grills with filter in the house and a filter tray at the bottom of my furnace in the return air system. The sizes are as follows: Grill #1 is 20x20x1 [...]
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Question: I have a UV air cleaner in my home. What MERV rating air filter do I need to use? Would it be beneficial to use a MERV 11 filter or would a MERV 8 work? I change my filter every month when it’s running but I will go for 3 months. I have changed [...]
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