- 1. The breathing valve for mask features the high-quality ABS material, which is strong and durable, and it is small and light.
- 2. The breathing valve is practical in use, which makes the mask tightly close when inhaling and it will open when breathing, and the breathing valve can block out pollution and at the same time, which can effectively discharge hot moisture.
- 3. The mask breathing valve has good ventilation and smooth breathing.
- 4. With the breathing valve, the replacement of the breathing valve will be simple.
- 5. The breathing valve is applicable to the replacement of the breathing valve of the cycling mask.
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