In 2020-2021 I designed an adapter to connect a gasmask tube onto a Trellchem/Alphatec suit. I have made several designs and the latest one is presented here.
The adapter screws in the existing vent hole of the suit. It uses a checkvalve and an o-ring so that when you unscrew the gasmask tube the vaccuum effects lasts a bit more.
Downloads below at the end of this post.
You will need to print the adapter part and the nut part.
Then you will need a 30mm o-ring with 1.5mm diameter and a “3M 383 valve” both you can easily find online.
