Water Bottle Humidifier for Oxygen Concentrator OXYGEN BOTTLE includes a pressure relief valve and downspout diffuser, ensuring a high flow delivery of 6 LPM Humidifier bottle designed to work with oxygen concentrators to decrease drying out of the upper respiratory tract, during long term oxygen use. ADAPTABLE – water bottle humidifier attaches easily to most oxygen concentrator. MAINTAINS DESIRED OXYGEN SATURATION – bubble humidifier from Healthline Trading is specifically made to deliver high oxygen flow rates via face mask. SOFT-START – water bottle humidifier is easy to use and clean. ADAPTER FOR CONNECTING OXYGEN CONCENTRATOR TO HUMIDIFIER - One end of the adapter slips over the nipple port on the concentrator. The other end threads into the attachment site on the humidifier bottle.