Zen Diffuser Aromatherapy Wooden Diffuser. Designed to meet old fashion and innovative technology as it is made with Bamboo and Glass. It acts as an aroma diffuser, humidifier, air purifier, ioniser and a night lamp. With no heating element there is no fire hazard and is safe to touch. It operates for 7-8 hours, has an automatic switch off function and is a great addition to your salon, spa, home and/or office. NO HEATING INVOLVED!!!