What Is Optiflow™? Optiflow is a revolutionary oxygen therapy solution, and one of the most exciting developments in respiratory medicine since the introduction of noninvasive ventilation over 20 years ago. Optiflow offers the comfortable delivery of a broad range of oxygen concentrations and flows. This exciting new level of flexibility means it can replace traditional oxygen therapy devices and in addition advance the therapeutic capabilities of oxygen delivery, thereby redefining the boundaries of oxygen therapy.