holmes ultrasonic humidifier no filter needed

-this energy efficient holmes ultrasonic humidifier propels visible, cool mist, with a virtually silent filter free operation. -24 hour run time cool mist humidifier. small humidifier has a 0.5 gal capacity water tank with a 24 hour run time on a full tank and low water setting. -antimicrobial protection includes a antimicrobial protective material in the water tank to prevent mold and bacteria growth. -Ideal small space humidifier which is ideal for small rooms plus plus its compact size allows for portability. -Easy to use includes 3 speed settings for optimal comfort levels and one button co trol for easy operation. Ships within 24 hours or less. -Refill light water shortage indicator illuminates when its time to refill the tank.