The 13 Best Amazon Air Purifiers — Starting at $40

Dyson Pure Cool Link TP02 Wi-Fi Enabled Air Purifier ($295)

If you're looking for an air purifier that can serve triple duty, this air purifier, heater, and fan combo is an excellent choice. Its 360-degree filtration system uses a HEPA filter that captures 99.97 percent of pollutants as tiny as 0.3 microns. It automatically reads the air quality of a room and signals pollution on the MyDyson app.