3M Respirator Block-off Caps and External Air tube adapter

thingiverse

3M Respirator block-off cap This includes same cap with a 4mm ID PVC Tube adapter variant (for pressurized air supply use) and also a 12mm ID PVC tube adapter (for non-pressurized air supply use). Use at your own risk. Understand that blocking off one filter port will cause the other filter to work twice as hard, making breathing difficult. To print this on FDM, best option is to cut embossed logo using tool to flatten outer surface and use it for bed adhesion. You may or may not need supports for overhangs. Using woodfill PLA with good overhang properties might require no supports. Feel free to experiment and comment. These items were created by request. Have fun! If you found this useful, please visit https://www.buymeacoffee.com/theStan and buy me a coffee at your convenience. Optional, but kindness makes the world a better place. Thanks, Enjoy!