specifications: 1. Speed design, quieter operation, longer life 2. Reed valve design, more efficient 3. Air filter core is made of by imported filter paper, good filtration and noise reduction 4. Breathing apparatus using labyrinth structure, which can guarantee no oil leak. Product introduce: Air compressor piston within the cylinder for reciprocating motion of the piston moves to the right and left cavity of the piston in the cylinder pressure is below atmospheric pressure, the suction valve open, outside air inhaled in cylinder, this process is called the compression process. When the output air pressure is higher than the pipe in cylinder pressure, exhaust valve opens. Compressed air to the pipeline, this process is known as the exhaust process. The reciprocating movement of the piston is driven by motor slider-crank mechanism. The rotation of the crank movement into sliding - the reciprocating movement of the piston.