Reptile Humidifier Mister is designed for maintaining reptile terrarium humidity. 3.5L BIGGER CAPACITY WATER RESERVOIR :Visual oversized water reservoir with adjustable (1.5-6.3 ft.) hose and two suction feet for securing the hose. AUTOMATIC SHUTOFF :One fill can work continuously for more than 24 hours, the water shortage protection function will automatically shut down the machine when the water level is too low or water shortage. ADJUSTABLE FOG OUTPUT: Mechanical knob adjusts the fog output, suitable for small vivarium tanks can also provide fog output for large growtent. ULTRASONIC COOL MIST: Ultra-quiet fine mist output, stable and continuous. QUALITY ASSURANCE: Waterproof fan and control board guarantees continuous work and longer service life.