70171 Adult：
- 22mm ID
- Material：PE for fitting, PE+EVA for corrugate tubing, latex for breathing bag
- Breathing system for adult, 0.6 meter length with 2 meter oxygen delivery tube, 2.0 liter latex bag and adjustable valve.
70172 Child：
- 15mm ID
- Material：PE for fitting, PE+EVA for corrugate tubing, latex for breathing bag
- Breathing system for child, 0.6 meter length with 2 meter oxygen delivery tube, 1.0 liter latex bag and adjustable valve.