Cliganic Ceramic Diffuser, 100ml Ultrasonic for Essential Oils Aromatherapy, Home & Office. Enhance your environment. Elevate your spirit. This contains a handcrafted matte ceramic diffuser that doubles as decor. Easy to clean and virtually silent, the diffuser uses hifi ultrasound to evenly disperse your favorite oils, while multiple light settings let you create both revitalizing and relaxing auras.