Air purifiers that cost under $100 are small, portable and designed to be used in a single room. Read on for the best air purifier under $100.

Another reason why you may still be battling dust is having the wrong sized air purifier for the room. “If you're still seeing dust in your home even after using an air purifier, it’s possible that the unit you’re using is not the right size for your space,” Dr. Jaspreet Dhau, Vice President of Research and Development at Molekule, says.

This home air purifier filters out everything from smoke to pollen, dust and more, and can also help ease any pet odours hanging around.

Having the best filtration system isn’t useful if you don’t have it in the room with you. Here are purifiers you can easily circulate to make sure pollutants don’t. We may earn revenue from the products available on this page and participate in affiliate programs.