Gas Mask Filter

thingiverse

There are four models available for enhancing a standard half-face gas mask with a 40x1/7 (40x4mm) round thread that meets EN 148-1 standards. A glue adapter and box, secured with epoxy adhesive, come as part of the package. The Ausblasfilter attaches to the top of the mask's vent outlet by clamping down on it. You can fill the adapter and the Ausblasfilter with filter paper or activated carbon wool to your liking. However, there is no assurance that this modification will provide any medical benefit.