Small Monkey Shape Exhalation Valves, usually be used for children dust masks and respirator masks, it inlcudes three parts top monkey shape cover + valve diaphragm + plastic base.
Exhalation Valve helps reduce heat build-up inside the respirator
Base Size:
outer: Φ31.5MM
inner: Φ23.5MM
Inhalation Valve size: Φ21MM
Production Of Exhalation Valve:
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