Product description 1-an ultrasonic nebulizer with very low noise 2-medical drug atomization r patients to inhale oxygen simultaneously 6-superfine nebulized particles for easier absorbing by the body. Product specification/models Power supply :110v-60hz, 220v(230v)-50 or 60hz, 12vdc Ultrasonic frequency: 1.7mhz Max capacity of medicine cup:80 ml Nebulizing rate:4ml per min to 7ml per min Time control:machine 60 min Particle size rate: 0.001 to 0.005 mm for 75 percent the entire volume particle distribution Noise: less 50db(a) Power consumption: 60 va Packing info: 1-standard outer cartons and inner box, 2-with instruction book, 3-eco-friendly good quality materials, 4- oem, can be customized by your brand name