Leak-proof technology: No oil leakage after dumping. When the diffuser is tilted 45 degrees, the machine automatically stops working. After 5 seconds, the machine will automatically start working. Note: After opening the aromatherapy machine, different essential oils will have different effects. Water-soluble essential oils: adding water-soluble essential oils, a small amount of mist will be generated after the aromatherapy machine is turned on, and the will slowly diffuse into the air. Pure essential oil: After adding pure essential oil to turn on the aromatherapy machine, there is no mist, but the will slowly diffuse into the air. Neither of these conditions will affect the evaporation of essential oils into the air, which is normal.After turning on the diffuser, different essential oils will have different effects. Water-soluble essential oils: adding water-soluble essential oils will produce a small amount of mist after turning on the aromatherapy machine, and the will slowly radiate into the air. Pure essential oils: After adding pure essential oils to turn on the diffuser, there is no mist, but the will slowly radiate into the air. Both of these conditions do not affect the volatilization of essential oils into the air, which are normal conditions. size: 70mm x 130mm Material: Aluminum alloy colour:grey Package Contents: 1 x Diffuser Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.