The overall mechanism of an air compressor is a piston or rotary element (e.g. rotary screw or vane) that allures surroundings, which is compressed into a storage container. Naturally, since the piston or rotary component needs to move consistently and smoothly for this to work, it generally needs to be lubricated.
In a lubricated air compressor, there is lubricating oil which keeps the piston or rotary element running smoothly without damaging the system. The Water Lubricated Air Compressor lubricant also helps to dissipate temperature and keep maintaining air compression efficiency.
Oil-free of charge air compressors also use a piston or rotary element, however they get around the lubrication problem by coating the compression element with a pre-lubricating materials like Teflon. Some oil-free compressors could also use water instead of oil for the lubricating and cooling procedure. These alternate materials shield the pump and invite the mechanism to move smoothly with no need for any oil-centered or synthetic lubrication.