Electric oxygen generator with a capacity of 5 liters/minute The DeVilbiss OSD device is unique in its oxygen sensing device with standard components that give it more accuracy and the ability to work for long periods. It is characterized by remarkable quietness during operation, as its sound quality has improved by 15%. Oxygen purity: +/-93% It has easily accessible adjustment buttons for the patient, and it also has a special area for the cannula to protect and preserve it. It has a suitable place to put the humidifier to protect it from damage. It has an easy-to-install and disassemble two-piece cabin for easy maintenance. It has a lockable oxygen flow rate meter, and another meter specifically for children is also available. Comfortable top and side handles for easy transport. It accommodates a cannula up to 50 feet (15.3 meters). Made in: USA