this post was submitted on 31 May 2025
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[–] Aviandelight@mander.xyz 7 points 1 week ago (1 children)

I just Bungie cord one filter to the back of a fan to filter the air in my parrot room. I change the filter every two months and it works well enough to keep the dander from building up.

[–] anomnom@sh.itjust.works 8 points 1 week ago

Yup, and adding the cardboard shroud helps keep it from stucking unfiltered air into the flow.

I think the main reason for the 4 filters is to reduce load on the fan and increase filter life. But many forced air heating systems get by with one or two filters stacked on the inlet.