Essential oil diffuser equipped with the new "Direct diffusion" technology: simply screw the essential oil bottle directly into the diffuser without removing the dropper. It plugs into a wall socket and can be used in any room of the house. Its ultrasonic operation allows the cold diffusion of essential oils to preserve all their qualities. The Oya diffuser is compatible with the entire range Le Comptoir scent, 5 or 10 ml of essential oils and compositions for diffusion 30 ml.