Provides a controlled drying environment by keeping low and uniform humidity level in cylinder pockets. Improves moisture profile across the paper web. Increases Drying Capacity from 5 to 15 % depending upon Machine configuration, type of paper, GSM etc. Increases the temperature inside Hood and thereby helps further in preventing condensation inside the Hood. Overdrying of paper at the edges can be controlled by edge correction dampers of PV box. Improves the life of Dryer screens and felt rolls.