I have a Trane 4TEE3F31 air handler which uses the 1" (looks more like 3/4") 20x20 air filters. I buy the cheap 'Basic' level filtration filters at my local Lowes because the others just seem so darn expensive and I'm skeptical (ignorant) that they would really do much better? One thing I notice when changing them is I usually see a thin layer of dark mold and I always wonder if the mold is trapped but then continues to grow and release spores?
I would like to upgrade to higher filtration level filter but it's hard when I pay $4 each now and the next higher up level (11 MERV) is $12 each.
I would like to upgrade to higher filtration level filter but it's hard when I pay $4 each now and the next higher up level (11 MERV) is $12 each.
source https://hvac-talk.com/vbb/threads/2241618-Does-mold-grow-when-trapped-on-my-air-filter?goto=newpost
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