The system 1.THE PLAINTEXT DISPLAY: with its user friendly features facilitates working considerably: high legibility due to lighting indication of destination number and name search key and address list individually programmable destination numbers and addresses indication of system status and operating sequence. 2. THE BLOWER: The system is run by one or more three-phase electric blowers which propel the carrier through compression or vacuum via a centrally controlled air switch. All components are equipped with self-adjusting Teflon gaskets which guarantee an airtight seal. 3.THE THREE-WAY DIVERTER : with a standardized offset transfers the carriers to the desired tube. The construction allows an airtight, silent connection of the tubes.Of course the system not only on the area of the public health useful.