Best options for bird owners? LOADS of dust/dander from Old World species!

I currently have one cockatoo, two cockatiels, and a Congo African Grey in one room, and am adding a second cockatoo after the holidays. Current cockatoo is a triton sulphur crested, and the incoming one is an umbrella, if that matters.

If you’re familiar with any of these species, they’re dusty as all get out. In adding a second cockatoo, the room is probably going to look similar to a snow globe.

Presently, I have two Levoits - The Core 200S and the Vital 200S. I’m looking to add a third purifier, and have been seeing some remarks regarding Levoit’s quality declining recently. So I’m on the hunt for something new, I guess.

The room is roughly 220 square feet, and I’m trying to keep the price below $200 if possible. I’m in the US.

Thanks!!