burin
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Is there a way to retrofit furnace ducting to change from your standard 1" furnace filter to a HEPA filter? All of the stuff I could google shows auxiliary units that filter a portion, and are a bit pricey. What I'm looking for is a kit that takes the down return air (10x24 i think) and jogs it over to accommodate the ~6" thickness of a HEPA.
Thanks,
Thanks,