The product, being an all-rounder, is quite compact. It accommodates easily into palm of the hand and is characterized by a lightweight structure and robustness. It is very rapidly adjustable. The realistic and innovative MEDAP click stop measuring flowmeters for consistent functioning prevail in the market as twin or single flowmeter models. Both children and adults are beneficiaries of this product. LS DFLOW O 15 and LS FLOW O 15 feature a 15 l/min flow, in accordance with the varying requirements useful for children and adults. In order to adapt to individual needs, 13 setting levels could be controlled. They demand an accurate regulation by easily rotating the handwheel, without needing any further check. Even at the time when the unit is put to use, alterations in the flow rate could be attained. The device is independent of position. It is especially suitable for intra-clinical transport of patients, owing to the vigorous technology used. This ensures an oxygen supply for the patient, in an uninterrupted method.