How many pulse flow settings does the GCE Zen-O lite accommodate? You are here: Main Portable Concentrator FAQs GCE Zen-O lite GCE Zen-O lite FAQs How many pulse flow settings does the GCE Zen-O lite accommodate? < All Topics The GCE Zen-O has five flow settings, from 1 to 5. 1 being the lowest and 5 being the highest.
