The Dynarex Resp-02â„¢ Disposable Bubble Humidifieris designed to humidify supplemental oxygen for patients receiving oxygen therapy at home. Ideal for use with all types of oxygen concentrators with either face masks or cannulas, the Bubble Humidifier is intended for oxygen low flow rates up to 6 PSI. The transparent humidifier features clearly defined minimum and maximum lines for easy monitoring.Features pressure-relief valve with audible alarm for optimal safetyIncludes PVC diffuser to help minimize noiseDisposable, single-patient use for optimal hygieneNot made with natural rubber latex or DEHPThe Dynarex Resp-O2â„¢  Oxygen Humidifier Connectoris designed to attach a dry humidifier bottle or pre-filled bubble humidifier to continuous flow oxygen concentrators.  Dynarex Resp-O2â„¢  Oxygen Humidifier Connectors come with  either sturdy  oxygen tubing on one end and a male threaded  grip elbow on the other end, or with star lumen oxygen tubing on one end and molded  threaded  straight connector on the other end.  Oxygen Humidifier Connectors  are universal and can fit most humidifier bottles with a DISS connection.Transparent oxygen tubing allows for easy visualizationUniversal fit connects with most humidifier bottles and connectorsRibbed connector provides a secure fit without damaging connection pointsDesigned to attach to barb-style concentrator outletsNot made with natural rubber latex of DEHP