Many people wonder how and why to use an essential oil diffuser. You'll want to fill it with filtered or bottled water to a diffuser, then add a few drops of essential oil like lavender ...

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

All participants received an odor diffuser to use at home for the 6-month duration of the intervention. The enriched group was exposed for 2 h every night over the course of 6 months, using a single ...