LEVOIT Warm and Cool Hybrid Mist is designed to Elevate Your Comfort and Well-being? The principle of LEVOIT Exclusive Warm Mist: The warm mist is created by heating water with a PTC heater and combining it with cool water. This mixture passes through the atomizing plate, is converted into a fine mist by the fan, and is released at a safe temperature of 86-120°F—NO RISK OF SCALDING. The benefits of LEVOIT Exclusive Warm Mist: 1. Improved mist dispersion: Water molecules' thermal movement ensures even coverage, humidifying an expansive area of up to 753 sq. ft. 2. Powerful output: Set at 550ml/h, the warm mist function generates temperature variation, boosting air circulation for 4× faster relief from discomfort. 3. Winter coziness: In colder months, the warm mist not only humidifies but also creates a cozy atmosphere, surrounding your space with comforting spring-like warmth and moisture. 4.Pure Mist: Heating process kills harmful elements, while high mist output reduces residue buildup and airborne particles, ensuring a healthy mist release. Important Specifications: Max Cool Mist Output: 300ml/h Max Warm Mist Output: 550ml/h Note: 1. Use distilled water or filtered water instead of tap water, use tap water might leave white dust and grow mold. 2. Clean the humidifier once a week to prevent buildups and extend product lifespan.