Stadler Form Oskar Humidifier - Black Virtually silent and White Dust free Includes a fragrance dispenser to freshen the air with your favorite pure essential oil (no synthetic oil, please), creating a relaxing or invigorating atmosphere - consumes low amounts of energy, emitting up to 2.4 gallons of moisture per day in spaces up to 540 square feet in size, counteracting the discomforting effects of a dry climate, such as dry skin, cracked lips, or sinus congestion Features 2 output levels, a memo function alerting you to replace the filters, and an automatic shut-off when the 0.9-gallon tank is empty Dimmable LED lights and an ultra quiet fan ensure an undisturbed night of sleep Suitable Accessories: Oskar Filter Pack, Water Cube, Zero Calc, or Stadler Form Pure Essential Oils Fragrance dispenser 2 output levels Output: max. 1.9 gallons per day / Tank capacity: 0.8 gallon Automatic shut-off