Coolant purifying system, invented by Apex is a patented product which can be installed to a CNC machine or any machines that uses oil coolant system. By attaching this system, tramp oil and other floating by products including bacteria can be separated from the coolant and the coolant can be used over and over again.The system also has an industrial ozone making device to produce high dense ozone to be used for disinfection and deodorization.