VENTILATING APPARATUS, [ APPARATUS FOR CONDITIONING OF AIR BY HEATING, COOLING HUMIDIFYING, DEHUMIDIFTYING, CLEANSING OR ADDITION OF OTHER SUBSTANCES; HEAT EXCHANGERS, DEVICES FOR CONTROL AND ADJUSTMENT (GOVERNING) OF THE RATIO OF HUMIDITY AND TEMPERATURE; MEANS FOR CHANGING THE PRESSURE AND VELOCITY FOR AIR AND GASEOUS MEDIA, ] DEVICES FOR THE GOVERNING AND CONTOLLING OF THE QUANTITY OF FLUIDS, CHANNELS AND DUCTS FOR THE TRANSPORT OF FLUIDS AND/OR GASEOUS MEDIA