The 13 Best Amazon Air Purifiers — Starting at $40

LEVOIT Air Purifier ($140)

If you want an air purifier that can handle a big space, this one can accommodate a room as large as 1,110 square feet. It has a three-stage filtration system with a washable pre-filter, which extends its life. The HEPA filter collects pet dander, pollen, and more, while the high-efficiency activated carbon filter helps neutralize pet odors, fumes, and VOCs. It even comes with a free app that lets you create schedules, keep an eye on your filter's life span, and use voice assistance.