The moody one has arrived. With its vase shape and swirling black-and-white finish, the Obsidian Ultrasonic Diffuser looks right at home on a shelf—even before you turn it on.

Add water and a few drops of Farm House diffuser oil, then choose continuous mist for up to 4 hours or intermittent mist for up to 8. Settle on one of eight light colors or let them rotate. When the water runs out, the diffuser shuts itself off.

Details: 100 mL water tank. Includes a decorative sleeve, measuring cup, and 5-foot cord. Diffuser Oils sold separately.