A lot of discounted holmes humidifiers for sale! Including Holmes HM5081 1.3 Gallon Warm Mist Humidifier. This humidifier is suitable for 600 sq.ft rooms. It emits gentle clouds of warm mist to soothe the agitating effects of overly dry air. This is an adjustable and easy to use unit. It also features 1.3 gallon tank that is easy to remove, carry and fill. It can run up to 24 hours on one tank and has a maximum output of 3 gallons per day.