The Myco-Mister Mini is an ultrasonic humidifier that provides optimal hydration for your indoor grow. Its ultra-fine mist improves overall mushroom quality while reducing blotch and other diseases, and its three settings allow you to adjust humidity level depending on mushroom species. (Designed for use with the Boomr Bin, but can also be used with other indoor mushroom cultivation systems.) Humidifer kit includes: (1) Humidifier (1) 1" diameter hose (2) Hose suction cups Monotub hose connector sold separately. For best results: Do not fully extend the hose. Make it as short and straight as possible to prevent water from pooling, which can negatively impact the mist. Use distilled or demineralized water or add a demineralization cartridge to water tank. Using tap water with a high mineral content (a.k.a. "hard water") can cause buildup and a fine white dust to be emitted. Read all maintenance and storage instructions (below) to extent the life of your humidifier. Specifications: Capacity: 4L 110-240V; 50/60Hz Max Usage Area: 215 Sq ft Max Evaporation: 380ml/H Power: AC Adapter