I purchased several stand-alone Air Purifier appliances for something like $100-200 each [0]. They have two kinds of filters that work in tandem, you replace on

I purchased several stand-alone Air Purifier appliances for something like $100-200 each [0]. They have two kinds of filters that work in tandem, you replace one every month and the other every three months. It gets expensive to replace all the filters when you have several of them, but they pull a ton of junk out of the air. [0] https://www.winixamerica.com/product/5300-2/ https://www.winixamerica.com/product/5300-2/