CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise.

To select the best essential oil diffusers for our list, we extensively researched the category and tested 24 essential oil diffusers for a total of 2,688 hours. What We Tested Design: We noted ...

The Beurer LA 40 diffuser is designed to disperse a subtle essential oil scent into a whole room. Here's our review ... if it's worthy of inclusion in our best essential oil diffusers roundup.