This adorable Crane Ultrasonic Cool Mist Humidifier provides additional comfort to cold symptoms, dry itchy skin, and chapped lips. The whisper quiet humidifier won"t disturb sleep and operates on a low power consumption providing min. of 11 hours of moisture from a removable 1 gallon water tank. It includes an automatic shut off safety feature when water tank is empty. The Crane Ultrasonic Cool Mist Humidifier - Dog features: * Ultrasonic cool mist operation * Increases air moisture for easier breathing and a good night"s sleep * Relieves cough, cold, and flu symptoms, including nasal congestion, dry cough, sinus irritation, nose bleeds, dry skin * 1 gallon water tank runs whisper quiet up to 24 hours * Mists up to 2.1 gallons of moisture per day * Effectively humidifies rooms up to 250 square feet * Auto shutoff safety sensor * Uses less energy than a standard household light bulb * Does not require a filter