You are conclusion shopping, let's not do that.

Zero people on the planet can tell you anything as you buy purifiers based on the square footage served. You aren't purifying your living room, you are purifying every room in the house with an unopened door next to the living room to include going up and down the stairs. And if you are doing your bedroom, you must keep the door shut or the bedroom unit becomes a whole house purifier.

So, you need to state how many you are wanting and how many square feet the spaces are.

AustinAir is the BIFL brand.