What is the best air purifier for home?

Best overall for most homes: Coway Airmega AP-1512HH Mighty. It’s a strong default because it has true HEPA-style particle filtration, a practical room size for bedrooms/living rooms, automatic mode, widely available replacement filters, and a long track record as a reliable home pick.

If you need a bigger-room option, choose the Coway Airmega 400S. If you want the quietest premium smart option, choose the Blueair Blue Pure 211i Max. If you want the best budget pick, choose the Levoit Core 300S.

Before buying, check three things: the room size rating, replacement-filter cost/availability, and whether you need carbon filtration for odors or mainly particle filtration for dust, pollen, smoke, and pet dander.