The 13 Best Amazon Air Purifiers — Starting at $40

Levoit Core 400S Smart True HEPA Air Purifier ($220)

This air purifier is well-suited for large rooms. It can clean the air in a 403-square-foot room five times per hour or a 990-square-foot room two times per hour. It has a three-stage filtration system and a sleep mode for extra-quiet filtration. Our favorite feature is voice control; it's compatible with Amazon Alexa and Google Assistant, so you can use it hands-free when cooking, holding your baby, etc.