Oxygen Venturi Mask I
1 Sterilized by EO gas. Non-toxic. Non-pyrogenic, single use only
2 Safe, simple delivery of 7 variable Oxygenconcentrations.
3 Color code for each mask, easy for theadjustment of different Oxygenconcentration.
4 The adjuster can be fixed tightly, hasobtained the invention patent.
5 Can match up with many other adapterswhich fits the mask.
6 Model: XL, L, M, S