This product was developed in conjunction with respiratory therapists for the successful treatment of asthma, allergies and other respiratory diseases and disorders. The compressor forces air through the tubing to the nebulizer. When the air enters the nebulizer it converts the prescribed medication into a mist of microscopic droplets that are suitable for easy inhalation. Power: AC220V/50Hz Motor: oil-free ball bearing piston Sound level: 55dB Max pressure range: 0.22Mpa Free air flow: 14 lpm Nebulizing rate: 0.26ml/min Medication size: 3~5um(75%) Color: green,yellow,pink,etc size:180*163*120mm Minimum order quantity:500 pcs