Is the GCE Zen-O a continuous flow device? You are here: Main Portable Concentrator FAQs GCE Zen-O GCE Zen-O FAQs Is the GCE Zen-O a continuous flow device? < All Topics The GCE Zen-O provides both a pulse flow of oxygen and continuous flow up to 2 LPM. For more information about pulse vs. continuous flow, please visit THIS ARTICLE. Previous How much does the GCE Zen-O weigh? Next What is the life expectancy for a GCE Zen-O portable oxygen concentrator?