The compressor/reservoir unit is ready to be installed on rescue vehicles with a 12 Vdc supply. In a small space the following are connected: an electric compressor, a nonrebreathing valve, an electrovalve compensating the pressure, a pressure controller and any device that can guarantee a constant delivery of medical air. Easy to install, it is supplied with feeding cables and connection pipe for medical air. To obtain medical air, it is essential to install suitable filters and dryers. We advise the use of plugs according to UNI 9507 to distribute medical air.