Pana air offers much more endurance and power than previous models, while being just as easy to handle. Its sleek design provides maximum visibility of the operating field, easily reaching all areas of the oral cavity. Its specifications are midwest 4 hole, speed: 350,000~450,000 min¯¹, speed (qd coupling): 300,000~400,000 min¯¹, head size: ?11.2 x h13.4 mm. Features are push button chunk,stainless steel body,ceramic bearings,clean head system,single spray, air pressure regulating valve.