Q. Continuous flow vs non-continuous flow oxygen concentrators: which is better? Why would someone have one vs the other? I had continuous to start with and now non-continuous, was that because my doctor ordered it, or can I go back to continuous if I want? 

A.  A continuous flow concentrator gives you a continuous, steady flow of oxygen all the time. A non-continuous flow concentrator, sometimes referred to as a pulse dose concentrator, will give you a “puff” of oxygen when it feels you begin to inhale.

As far as one being considered better than the other, it just depends on each patient. If you have a portable battery operated concentrator, the non-continuous flow, or pulse dose concentrators, tend to have a longer battery life due to not having to continuously produce oxygen, which can be seen as a benefit. However, some patients cannot tolerate the “puff” or pulse dose (oxygen levels will not stay at a normal level) and may need to be switched to a continuous flow concentrator. 

To change from a continuous flow to a non-continuous flow, or vice-versa, that would require a physician's order. If you have concerns regarding which equipment would best suit your needs, please speak to your physician.