Unlike other humidifiers that grow slimy mold and mildew， the Pure Guardian 100-Hour warm and Cool Mist Ultrasonic Humidifier uses Silver Clean technology to fight the growth of mold and mildew on the surface of the water tank. Thanks to ultrasonic technology it's ultra-quiet when it runs making it ideal to have on while you sleep. The humidifier is equipped with the option for warm or cool mist， and a low water indicator light lets you know when it's time to refill the water tank. This humidifier also features a soft glow night light that turns on and off.
Silver Clean protection: treated with Silver Clean technology to fight the growth of slimy mold and mildew on the surface of the water tank a common problem with traditional humidifiers
Saves money: with no evaporating pads， filters or wicks to clean or replace， there are no added costs
Warm and cool humidification: enjoy your choice of warm or cool mist
Best for medium sized rooms: variable spray control works in medium rooms
Ultrasonic technology provides virtual silence when running
Low water indicator illuminates when it's time to refill the tank
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