Reddit allergy users specifically call it out for quiet operation that makes a noticeable difference, and WIRED highlights its handle and wheels for easy room-to-room use. The 1,000 sq ft coverage makes it ideal for open-plan spaces.
If you have a large open home and need something you can move between rooms without it driving you crazy with noise, the ProX is the pick — Reddit and WIRED both land on it for the same reasons.
“Id go with the Coway Airmega. its quiet and has made a big difference for my allergies. My place feels noticeably fresher and I don't wake up as”