flow controllers, valves and regulators or controlling and limiting flow and pressure of gases and liquids

process control systems and manifolds, manual and air actuated, for controlling and limiting flow and pressure of gases and liquids

equipment and systems used in the handling and administering of medical and dental gases, namely gas regulators, valves and flowmeters, humidifiers, inspiratory valves, inspiratory units, oxygen tank carts, resuscitation devices, portable oxygen units consisting of oxygen tank, regulator, valve, flowmeter, carrying case, and nasal cannula and orthodontic blowpipes, cylinder manifolds and related parts