This equipment sprayed liquid medication to fog panel compressing air, and form tiny particles, which flow into the throat through imbibing tube. It adopts oil-free-high-efficiency valve with no need for daily lubrication and it is with low noise, tiny particles. It is an ideal product for family and medical units'use. COMPACT & DURABILITY It's ideal for all ages and is easy to use with its one-button operation. The built-in handle makes the light-weight unit easy to carry from room to room. The non-slip pads on the bottom ensure the unit will reset securely on any flat surface. Enjoy peace treatment with this quiet machine. Specifications: Particle Size: 0.5 -10 um Average Conversion Rate: 0.3 ml/min Compressor Pressure Range: 44 - 55 psi Liter Flow Range: 6 - 8 LPM Sound Level: < 60 dB Medication Capacity: 10 ml Power: 110 V / 60 Hz Weight: 3.2 lbs. / 1.45 kg Dimensions: 7" x 5.5" x 3.4" Package Includes: Compressor Medicine Chamber (Cover, Purple Jet, Medication Cup) Air Tube Air Filters Adult Mask / Child Mask