HEATING EVAPORATION TECHNOLOGY: KEEBAR steam humidifier creates water vapor by heating water, therefore no haze of minerals floating in the air. It also produces less mist so that there are no worries about a huge amount of mist damaging your household appliances and furniture. Perfect for your whole family including children and the elderly, works not only as a humidifier but greatly helps relieve dry nasal and sinus passages, dry skin, and chapped lips in the falls or winters..30DB SUPER LOW NOISE LEVEL: Even quieter than a whisper so that you could use this air humidifier in your bedroom without worrying about disturbing sleep. Warm mist humidifier could effectively prevent dry skin and uncomfortable throat, allowing you to feel the best body condition while you using with space heater. The high temperature helps fight allergies and kill airborne allergens - also dramatically reduces the discharge of white dust typically produced by other ultrasonic humidifiers..4L LARGE WATER TANK: Room humidifier could create up to 300ml water each hour and work for up to 40 hrs at a lower speed. Turn off the panel lights with sleep mode and still keep your pre-programmed humidify speed and timer settings. Both leakage protection and anti-dry burning function are equipped with this air humidifier..EFFICIENT & FUNCTIONAL: The control panel allows you to select a speed (low, medium, high) and reach up for your desired humidity. The energy-saving warm mist humidifier uses heating evaporation technology to humidify the air in rooms up to 500 square feet, making it to be a great medium and large room humidifier for bedroom, living room. You could also program the air humidifier to shut off automatically after 2, 4, or 8 hours..EASY TO CLEAN: To protect your health, we strongly recommend cleaning the portable humidifier once a week if you use it frequently. Easily cleaning water tank and evaporating basin with water or a so cloth. 24 hours online for any questions and technical assistance. KEEBAR is committed to providing you with the best humidifier.