Paper, cardboard, wood, leather, tobacco, textiles, food and other semi-finished and finished products
are all to a certain extent hygroscopic - they comply with the indoor humidity in an exchange relationship. You can either take steam from their environment or give off water vapor. This will continue until they are with their environment in an equilibrium state. Quality and workmanship of the products depend greatly on the material moisture.
Reduction of electrostatics for plastic products and electronics.
Electrostatic charges produce voltages! This can lead to short-term flows and interfere with bonding. This is a very high quality problem, causing outages and costs for. As for plastic products and electronic goods.