Zen-O™ - How to change language on your oxygen concentrator

Zen-O™ is a best in class Portable Oxygen Concentrator from GCE Healthcare. Zen-O™ delivers up to 2 litres of oxygen to patients that require supplemental oxygen in either pulse or continuous mode, and is supplied with a 3 year warranty. GCE Group website: http://www.gcehealthcare.com GCE Healthcare Facebook:   / gcehealthcare