Below, see the best air purifiers under $350, listed in order of size, based on findings from our rigorous tests. Read our air purifier buying guide for more on what goes into testing them.

It automatically adjusts the fan speed based on air quality and has a sleep mode for quiet operation while you snooze. Walmart shoppers have reviewed the Dr. J air purifier thoroughly, and they ...

To help you find the best model for your needs, we put dozens of air purifiers through rigorous testing in our Louisville labs facility to find which ones are the most effective. Based on our ...

That said, this model is incredibly user-friendly. The purifier also automatically adjusts its filtration speed based on the air quality, which helps conserve energy while ensuring that your home ...