The paper coating production line Thermovent treats paper in liquid baths for further use of the paper in the health service. As the equipment is symmetrical, the paper can pass through the line from the right to the left as well as from the left to the right, which minimizes handling between individual process steps. The line has its own chemical management for the preparation of process mixtures. The paper passes through baths and then through a continuous oven where it is dried. Humidity of the paper is measured in a contactless manner at the output from the oven. The paper is wound on both sides of the line on reels with an automatic correction of winding.