Award Winning H5 Spiral Humidifier using H5 hybrid technology emits the finest mist. H5's punched metal encasing and side window panel allows for easy view of the water levels. The anti-bacterial water tank holds 2.6 liters, runs for 20 hours, and humidifies up to 650 square feet. Aside from the night light feature and timer function, H5 doubles as an aroma diffuser. Dimensions (L x W x H): 7" x 6.5" x 14"Material: Acrylic/ PlasticMade in ChinaAntimicrobialCare Instructions: Empty any water residue from the base of the humidifier, and add undiluted clear vinegar. Let it stand for about 20 min. and drain. Add a little water to rinse, drain, and wipe clean.