1.Logical structure design, comfortable and reliable

2.Logical casing design, crush-proof, good impermeability, safe and stable

3.HYZ4 cooling canister chamber equips with drainage, which protects against the breathing system 

    resistance.

4.Excellent cooling performance, light and easy to carry

5.Adjustable constant flow unit: Users can adjust the oxygen supply constant amount according to

    their needs. The supply is stable, clear and long lasting.

6.Self-supplement unit: supplement oxygen in time, safer and save more oxygen.

7.Facemask is equipped with quality speaking unit and drainage , more convenient and user

    friendly.