Atmospheric air always includes water vapour and impurities. For the end user it is extremely important that the air is free from moisture and particulate contaminants, such as oil and dust. If these contaminants come into direct contact with the ﬁnal equipment, the costs for maintenance would be very high, and a device for air treatment, that originally would be practical and economical, then could prove very costly.ATS target is to provide our customers with the tools necessary to obtain high-quality compressed air, clean and dry, that is free from elements that can decrease the efﬁciency and reliability of the system. Depending on the use of compressed air and the area of its application, these substances can have different impacts in the production process. It is important that the selection is accurate and detailed in order to choose the best possible combination of accessories for air treatment, to optimize the available resources and reduce unnecessary waste.