Best oil diffusers in 2021

Purifies and humidifies the air for the ultimate relaxing experience. Made from the same material as baby bottles, so you know it's safe, durable, and long lasting. The 300ml water tank lasts a long time and is easy to clean. There are also seven different LED light colors you can choose from, multiple mist timer modes, and a safety switch to prevent it from overheating when it runs out of water.

Comes in multiple colors. This compact oil diffuser can almost fit in the palm of your hand. It's great for a desk or countertop or for carrying with you on the move. Has two misting modes and can last the whole night. Includes eight soothing colors and adjustable brightness. Automatically turns off when the water runs out.

Includes an oil set that has six popular essential oils: lavender, tea tree, peppermint, eucalyptus, lemongrass, and sweet orange. The 500ml water capacity can last for up to 15 hours while running continuously. Helps purify the air as well. Has four timers, an automatic shut off, and runs really quiet.

The extra-large capacity means this diffuser can last for days, running for up to 30 hours on a continuous setting. It's easy to use and easy to clean, and it can also act as a humidifer so you avoid dry air and improve your air quality. Includes adjustable mist output, color-changing lights, and an automatic shut off.

Covers up to 800 square feet. Having built-in nebulizing ability means it's the strongest and most effective diffuser around. Get pure and concentrated fragrance across a large area very quickly. Uses only pure essential oil with no water, no heat, and no plastic.

Lasts up to nine hours with the 250ml water tank. Includes several timers and automatic shut off functions. Ultrasonic technology makes it super quiet.