?OVER 20 HOURS OF CONTINUOUS HEALTH BENEFITS? Large-capacity. 5L water tank permits over 20 hours of continuous cool mist humidifying, relieving sinus problems, moisturizing dry skin, easing asthma symptoms, reducing snoring, and lowering chances of spreading cold and flu ?360° DEGREE HUMIDITY COVERAGE?360° degree rotating nozzle ensures an even level of humidity distributed in your home.It's the perfect size for any room, big or small.Convenient usage in your office, home , bedroom, living room, and anywhere else you might need it ?ACTIVATED CARBON COTTON CARTRIDGE?Microporous activated carbon cotton filter cartridge filters out microorganisms and negative ions from water for a cleaner and healthier mist ?ULTRASONIC, ULTRA QUIET TECHNOLOGY? Ultrasonic Technology runs silently, providing cool mist humidifying without excess noise unlike other humidifiers ?100% WORRY-FREE PURCHASE?If you are unhappy with your purchase, reach out to us via the Contact Seller button in the Your Orders section for a refund/replacement within 24 hours