医疗级PVC。
高浓度可调节鼻夹。
提供7'抗压缩管。管道长度可定制。
两种颜色选择：绿色和透明。
DEHP免费，100％无乳胶。

Mase of medical grade PVC.
High concentration. Adjustable nose clip.
Available with 7' anti-crush tubing. Tubing length could be customized.
Two colors for choice: Green and transparent.
DEHP free and 100% latex free available.