... oil free pump for environmental protection and low noise.Overflow protection and inside bottle make compact design, lightweight ... , small size and is convenient for transportation and safe use. Three options for power ... , 2m long, 2mm thick, 12mm in diameter), suction tube(2pcs, 1 for adults, 1for children, 55cm ... /carton) (9E-B)Portable phlegm medical suction unit