Current systems of air conditioning, ventilation, and chimneys are designed to provide an acceptable climate in the room, which means regulating the level of humidity and temperature of the air, and if necessary, cleaning it from various impurities. Maintaining these conditions at the proper level will avoid a number of problems, including: mold, fungus, condensation on structures that are subject to corrosion, air rarefaction.
Together, all this leads to a deterioration in health.