TaoTronics – Enhance Your Life People feel most comfortable when the relative humidity is between 40-60%. It may cause nasal congestion, skin and eye dryness, static electricity and cracks in furniture when humidity drops to 30% or below. TaoTronics ultrasonic humidifiers help to relieve those discomforts by adding clean and healthy moisture to the dry air. From cool mist to warm mist, from bottom fill to top fill, we have always been on the way to make the best humidifier for you. Warm Tips 1. Please do not add any essential oils into the humidifier. 2. Please do not place this product on blankets or towels. 3. The most comfortable environmental humidity is between 40%-60%. Please adjust the mist as you need. If humidity is too high, please do not use this product. Technical Specifications Model: TT-AH001 Voltage: 120V/60Hz Power: 30W Water Tank Volume: 4L/1.06 Gallon Working Time: 12-30 hours Max Humidity Increase: 300±30mL/h Noise Level: ≤38dB(A) What's in the Box 1 x TaoTronics Humidifier (Model: TT-AH001) 1 x Cleaning Brush 1 x User Guide