Comment by Mister_Snuggles

I've got this setup to deal with cat litter dust. It works very well for that purpose and the filters are cheap (I get the cheapest one that's not see-through, <$10CAD I think).

That said, it's very loud even at the lowest setting. It's not something you want to share a room with. I use my home automation stuff to only run it when required, based on a motion detector at the litter boxes.