Brand new & high quality. No heat or chemicals used. Easy to operate, long service life, self-protection. Creates a mystical fog from water within seconds. The dry ice effect without the dry ice. No chemicals needed, completely safe. Add a stunning mist effect to your pond or water tank to filter the bad smell with electro and ultrasonic technology. Ideal for indoor or outdoor fountains, water feature, and office use. Increase your humidity without wetting plants! The Mist Maker's light, fine fog is what you need. It produces water vapour via ultrasonic vibration to increase your humidity.To use it, you just place it in a bucket or tank, with your water level reaching just above the ceramic plates in your mist maker. It's quiet, compact and cool running. To prevent overheating, if your water level drops too low, your Mist Maker will switch off. For best results, point a fan at it so mist is distributed evenly in your grow room.