Honeywell QuietCare™ 3.0 Gallon Cool Moisture Humidifier with EasySet™ Electronic Controls uses cool moisture to quietly provide natural relief from dry air. The EasySet™ Electronic Controls are simple to use with individual controls for desired speed and humidity, making it easy to maintain your desired comfort level. Plus, your humidifier stays cleaner, longer with Protec™ Continuous Cleaning which includes a Protec™ Cleaning Cartridge to help provide fresher, cleaner mist and a Protec™ Antimicrobial treated filter to help prevent the growth of mold and bacteria on the filter. This humidifier is recommended for medium to large size rooms and is ideal for bedrooms and living rooms. It's compact, space-saving design allows for placement anywhere in your home. Replacement filter: HAC-504/HAC-504AW