OXYGEN CONCENTRATOR NASAL CANNULA BUBBLE HUMIDIFIER specication Oxygen concentrator is a device that generates oxygen with a purity of %92 ± 3 by using the enviroment air that comprehends in the ratio of %21. Oxygen purication system designed appropriate to the human health. Today, many people are living with dierent illnesses, such as, heart, lung and the other respiration deseases. Most of these people have found help from the oxygen treat ments that they take at home or hospital. OXYGEN FLOW RANGE OXYGEN CONCENTRATION MAXIMUM OUTLET PRESSURE This device will help you to take adaquate oxygen treatment that you need. OPERATING TEMPERATURE RANGE 10°C ~ 40°C OPERATING HUMIDITY RANGE Using the oxygen without permission of authorized people can be dangerous. Device should be used under the supervision of a licensed physician after reading the instructions manual.