The 13 Best Amazon Air Purifiers — Starting at $40

Aroeve Air Purifier ($40, originally $45)

Just under 10 inches tall and only six inches in diameter, this small air purifier still packs plenty of power. It uses an H13 HEPA filter to filter smoke, pollen, dander, hair, and smells. If you're worried about the noise, you can turn on sleep mode, which will reduce it to the lowest speed to give you peace and quiet while it works through the night. It covers up to 215 square feet, so it's perfect for a small bedroom or office. Shoppers love that there's an aroma pad below the purifier air outlet to add essential oils for fragrant air. One reviewer described this feature as "so easy to use" that they "use it more than our diffuser."