The Prima SPR Rail Mounted Anaesthesia System introduces a new innovation on the specifications of compact anaesthetic machines. The Rail and Wall models features a compact rail mounting which can be mounted on a pendant system, a Mechanical Anti-Hypoxic Device (AHD), an Optional Cascade Flowmeter - Oxygen, Nitrous Oxide and Air as well as Optional cylinder yokes (Wall machine only)and reaches up to three gases. The system also includes a monitor shelf and work surface, high Common Gas Outlet (CGO) plus an optional built-in Oxygen Monitor. The Prima SPR Rail Mounted Anaesthesia System complied with all the appropriate international standards.