At around $100 to purchase, it’s also the cheapest up front of all our picks. It’s attractive and compact, measuring just 14½ inches tall and 8½ inches in diameter, and its display-shutoff feature means it won’t interrupt sleep with bright lights.
On medium, it reduced them by more than 92%. It was impressive in our tests, reducing particulates by more than 97% on its high setting in 30 minutes in a 135-square-foot New York City office. If you need to clean the air in a space of around 200 square feet, the Levoit Core 300 is a solid and inexpensive purifier.