Here's some good news for the winter. Did you know that a boost in humidity can actually make your home feel warmer without cranking the heat. Talk about energy efficient. Thats just one of many reasons why this warm mist humidifier from Perfect Aire is a must. With a 1 gallon capacity, this unit will keep comfort coming for hours thanks to a lengthy run time and adjustable output levels that you control. Illuminated by a night light, this whisper-quiet humidifier generates soothing white noise for a sound sleep.