Experts claim that aroma diffusers and essential oils help alleviate stress, headaches, depression, boost energy levels, improve memory, sleep, digestion, and strengthen the immune system. Features include quiet ultrasonic technology, an auto-shutoff sensor when water runs out, and a USB power supply (cable included). Vaporizes essential oils to improve skin moisture during winters and promote restful sleep. Can be placed on bedroom nightstands and features soothing lighting to help children sleep. Umidificator de aer