For reducing the air humidity, the fresh air from outside is conducted to reduce the air humidity in the drying room via a small window at point 6 while the high humidity air is released to the ambient via a top duct at point 7.
For reducing the air humidity, the fresh air from outside is conducted to reduce the air humidity in the drying room via a small window at point 6 while the high humidity air is released to the ambient via a top duct at point 7.