Vicks Humidifier Cool Mist Ultrasonic Mini VUL525E1The Vicks Humidifier Cool Mist Ultrasonic Mini VUL525E1 offers filter free operation and up to 24 hour runtime. It features a 0. 5 gallon capacity and is compatible with VapoPads for soothing menthol vapors. Ideal for temporary relief of cough and congestion, it ensures better breathing and a more comfortable sleep. Key Features Filter Free Operation Up to 24 Hour Runtime 0. 5 Gallon Capacity Compatible with VapoPads Temporary relief of cough and