You get seven options for light colors and two brightnesses for each color, as well as the option of no light. In general, she said, aromatherapeutic uses of essential oils can be considered safe, because the oils themselves are not inherently dangerous when inhaled and because their concentration in the air is low. It lights up in seven colors, offers a timer function, and has LED indicator lights that aren’t as distractingly bright as those on much of the competition.

This diffuser has an option for intermittent diffusing, which our pick lacks; on this setting it can run for seven hours. The ratings/reviews displayed here may not be representative of every listing on this page, or of every review for these listings. The maintenance instructions for our top pick recommend using a little fragrance-free dish soap (our top pick for dish soap fits the bill).Experts she spoke to advised against using a diffuser in the same room as a pet, as the oil can settle on their fur.

In previous years we tested the Diffuser World Aroma-Express and the Diffuser World Aroma-Infinity, both of them nebulizers. Fancier diffusers made from materials other than plastic often have two layers of lids—one functional and one decorative. The top of the diffuser snaps snugly into the base, so you can pick up or rotate the whole diffuser by the lid.Their primary application is to provide a refreshing and calming scent in cars, but they can also be utilized in small office spaces or at home. It has a porcelain shell and comes in several understated colors, including black, white, blush, sage, and terracotta. If our top pick is sold out or you’d like a slightly bigger tank, we recommend the Asakuki 500ml Essential Oil Diffuser (or the nearly identical Urpower 500ml Aromatherapy Essential Oil Diffuser).

The Kumi diffuser has three output settings (high, low, and intermittent) and three light settings (bright white, low, and off for sleeping). As noted above, in “ Who should get this,” there are also anecdotal reports of essential oils negatively affecting the breathing of asthmatics and non-asthmatics alike.I did not notice this dust during diffuser testing, possibly due to the diffusers’ much smaller output than humidifiers. The lid on these diffusers doesn’t snap onto the base, making it a good choice if you have trouble gripping or twisting. He placed the diffusers and the nebulizer on his bedside table (a typical location for these things), with the particle counter a few feet away on the headboard.