Decathlon Mask One-Way Valve

thingiverse

A one way valve is preferable to avoid exhaled air from going up the O2 line to the patient. This one way valve reuses the membranes you need to remove from the interior of the mask. The valve must go before the reservoir bag if one is used. Currently Male to Female. See the DAVE connectors on my profile with the integrated valve. Although best to use the mask membranes, a M2 Bolt with a round section of plastic such as a zip-lock bag works instead of the integrated membrane. Rest of parts on my profile and here: https://gitlab.com/ma-d-kers/library