500ml Diffuser Suitable for Large RoomThe essential oil diffuser is equipped with a larger 500ml water tank and has a super long working time of 12 hoursBrings you a steady stream of Fragrance even in large rooms TopFill Design Easy to UseOur diffusers for essential oils large room comes with wide opening topfill design allows easier filling and cleaning Tips recommend to clean the tank once a week for a better user experience Low Noise DesignThe oil diffusers noise at work low than 30 db let your family enjoy a quiet fragrance 7 Changing Colors Soothing Night Light The aromatherapy diffuser included 7 different light combinations which can offers a comforting glow very suitable for home meditation yoga or as a night light Waterless Autooff Very Safe You can use this humidifiers for bedroom at night Once the water runs out the difusor essential oil will automatically shut off for your safety