With or without soft ambient light with changing colors, this essential oil humidifier diffuser offers you a true moment of well-being for 5 hours. Equipped with an ultrasonic diffusion system that provides a light water mist, this essential oil diffuser pleasantly moisturizes the ambient air and improves respiratory tract comfort. It is ideal for daily use in a dry environment and can also be used without essential oils in the presence of babies and/or toddlers. It is recommended before any use or handling to verify that the diffuser is off and unplugged. 1) Place the diffuser on a stable surface, do not place it too close to an edge (it could tip over). Do not place it on or near furniture or surfaces sensitive to moisture. 2) Remove the lid 3) Fill the water tank with cold water and enough (between 35 ml and 60 ml) so that the water detector indicator is completely submerged. Attention If the water level is below 35 ml, the diffuser will not operate. Do not exceed the line indicating the maximum water level (60 ml). Do not use hot water, it may damage the diffuser. ˙ Then, add a few drops of essential oil or Puressentiel® diffusion blend: generally 1 to 2 drops per 10 ml of water. 4) Replace the essential oil diffuser lid. 5) Insert the adapter tip into the DC-jack input at the back of the diffuser and plug the adapter into a power outlet. Regarding operation: 1. Continuous diffusion Press the ON/OFF button on the front of the diffuser once: - diffusion activates continuously (up to 5 hours of diffusion when the water tank is full to the maximum level, i.e., 60 ml). - ambient lighting is activated. - diffusion automatically stops when the water level is insufficient and a red light flashes at the bottom of the water tank for 1 minute before the diffuser completely stops. 2. Cyclic diffusion Press the button a second time: - cyclic diffusion activates: the diffuser operates for 15 seconds and then stops for 15 seconds. - ambient lighting is activated. - diffusion automatically stops when the water level is insufficient and a red light flashes at the bottom of the water tank for 1 minute before the diffuser completely stops. 3. Diffusion with programmed stop after 1 hour Press the button a third time: - diffusion activates and the timer starts: the diffuser runs for 60 minutes before automatically turning off. - ambient lighting is activated. 4. Stop Press the button a fourth time to turn off the diffuser: - diffusion is deactivated. - lighting scene is deactivated. 5. Ambient lighting off To turn off ambient lighting, hold down the ON/OFF button for 3 seconds, the diffuser will continue diffusing according to the selected operating mode. If the water level in the tank is insufficient (below the water detector indicator), diffusion will stop automatically. Then, a red light will flash at the bottom of the water tank for 1 minute before the diffuser completely stops. Do not use soap, strong cleaning agents, detergents, gasoline, glass cleaner, furniture wax, paint thinner, or any other solvent to clean the diffuser. Using other substances may pose a toxic risk or fire risk. Children must not perform user cleaning and maintenance without supervision. The device should only be used with the power supply provided with the device. Before connecting the device, check that the electrical voltage of the household corresponds to that of the device. Never place the power cable under a carpet or near heat sources: radiator, stove, or heater. Unplug the essential oil diffuser from the humidifier before filling and cleaning. Pour water into the designated water tank. Do not direct the steam outlet directly at the wall. Never move or attempt to empty the diffuser while it is operating. Turn it off and unplug it before emptying or moving the diffuser. Empty the tank when the device is not in use. Do not remove the lid or cover the diffuser when the device is operating. Renew the water in the tank frequently to avoid residues and limescale deposits that could damage the diffuser. Do not disassemble or attempt to repair the device in case of malfunction. Do not block the air inlet or outlet. Never place the essential oil diffuser under the tap or immerse it in a liquid. Daily maintenance: Ensure the diffuser is off and unplugged before cleaning.Remove the cover.Empty the water contained in the water tank carefully so as not to spill water into the air outlet and rinse the inside of the tank well with clean water to remove all residues.Then dry with a soft cloth.Fill the water tank following the steps in the "Instructions for Use".