| 摘要 |
An oxygen dispenser for dispensing substantially pure oxygen or highly oxygen enriched air comprises an oxygen concentrator 2 or an oxygen/oxygen-enriched air-containing cylinder in fluid communication with a dispenser outlet 5 via pipework 4 and a flow control valve to control flow of oxygen or oxygen-enriched air to the dispenser outlet 5. The flow control valve 15 under the control of a controller the dispenser unit futher having a card reader 8 for a mag-stripe, swipe card, smart card or similar or a receiver for credit tokens or other data credit input means whereby credit units may be input to the dispenser controller to dispense oxygen or oxygen enriched air. The outlet 5 may comprise a socket to which a nasal cannula or a tube leading to an oxygen mask may be detachably coupled. |
