Cool Mist Humidifier Diffuser Disperse cool mist throughout your living spaces to create a soothing atmosphere at home with the LEVOIT Ultrasonic Humidifier. The soothing mist helps eliminate most germs/bacteria, viruses, mold spores, and mineral dust around your living spaces. You can control both high and low mist settings with a single button. If you have trouble sleeping at night, the cool mist will alleviate congestion or a cough by keeping your throat and nasal passages hydrated. Benefit from aromatherapy fill your room and living space with calm, revitalizing fragrances by transforming the humidifier into an aroma diffuser. Technical Specifications: Rated Power: 30WWater Tank Capacity: 1. 1 gallons (4. 5 L)Operation Time: 15-40 hours Note: Use distilled water or filtered water instead of tap water, use tap water might leave white dust and grow bacteria/mold. DO NOT let water enter the air vent. DO NOT add essential oils, bacteriostatic agents, perfumes into the water tank. DO NOT put the humidifier on the wooden floor or wooden furniture directly unless a towel is placed on the wooden surface. It is recommended to place the humidifier on elevated-level surfaces such as desktops, tables, or nightstands. What's in the Box: 1 x Ultrasonic Cool Mist Humidifier LV450CH1 x Cleaning Brush3 x Aroma Pads (1 Pre-installed)1 x User Manual1 x Card