You don't need a noisy humidifier to stop suffering in dry air. QuietCare? technology makes unit up to 30% quieter than similar consoles. Capable of covering a room up to 2,300 sq. ft. Air-washing technology?with an ionizer and pre filter that wash the air as it humidifies?helps capture dust, dirt and pollen. ProTec? continuous cleaning cartridge and the antimicrobial-treated filter provide fresher, cleaner mist and protection against the growth of mold and bacteria. Auto shut-off function kicks in when desired humidity is reached or tank is empty. Large casters make for easy transportation.