Main technical indicatorsedit
1. The interface of the inner hole of the catheter should be unblocked and not blocked;
2. The mask is equipped with a nose clip and elastic band, and there are vents on both sides;
3. The oxygen supply pipe and the joint should be firmly connected, can withstand 15N static axial tension, and shall not break or fall off for 15 seconds;
4. The oxygen supply pipe should be able to withstand 50kPa air pressure and should not leak for 15 seconds;
5. Products should be sterile







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