Oil-free compressor introduced: no oil lubrication is a reciprocating piston air compressors, single-stage compression and two-stage compression, air-cooled, portable air compressor. All the moving parts air compressor using self-lubricating materials, do not add any oil to work. As a result of air compressors and lubricants, thus has high purity, does not pollute the environment and gas facilities, can be widely used in foodstuff, medicine and health, cigarette wine, aquaculture, machinery and metallurgy, petrochemical industry, textile printing and dyeing, electronic equipment, transportation telecommunications, scientific research institutions, such as requiring a higher level of purification of the use of gas, more suited for general use of gas power.