HeliO2 blender with its unique design is the only freestanding pneumatic device in the market today. The bleed control collar can be turned ON/OFF, providing ± 3% FIO2 accuracy, noise free operation and maximal heliox tank durations. The device is composed of ABS housing for durability and the selection control knob is recessed for prevention against any unintentional changes in FIO2. The modular designed unit can be easily maintained by all biomed departments at reduced cost and maintenance. The unit is available in 4 models namely high-flow 80/20 or 70/30 and low-flow 80/20 or 70/30. The unit when used in combination with an optional cylinder clamp and pole, reduces clinician setup to a large extent with ease of tank changing. HeliO2 blender can be used with multi-accessories as per patients and clinicians need.