Ultrasonic Mist Maker Humidifier Fogger No Led for Decorative Purpose. Good Quality. More Smoke.Long Life. Ensure the water at high quality, use clean tap water.(water quality deterioration may influence the lifetime). Put in the water and the voltage is 24V, then the mist appears.No heat or chemicals used. Our humidity fogger can provide mist. Aerosolized amount:≥300mL/H. This mist maker can add a stunning mist effect to your pond or water tank to filter the bad smell with electronic and ultrasonic technology. Atomized mist is generated in a large amount and the service life of atomizer is long. Ideal of good decorative effect, in the rockery, fountain, potted landscape. Great for you to buy one. Working Instruction: Atomizer should not be kept too deep in water; else would not be able to generate mist; Working Depth: 4-9cm .>> Please Do not operate atomizer continuity more than 8-10 hours and stop for 1-2 hour after that. working life 3000 hours .