Visit the page of each component for more insights and a list of the different designs we encountered.
Splitter More info >
One-Way Valve More info >
Flow Restrictor More info >
Pressure & Volume Measurements More info >
Filters More info >
PEEP Valve More info >
Ventilator More info >
Bypass circuit More info >

General guidelines on 3D printing of components

The preferred choice for components should always be the medical grade, commercially available products. Please note that in some cases, like in the case of circuit splitters, there are easy to obtain commercial (non-medical) alternatives available that would still be safe to use. We therefore think the need for 3D printed components only arises in case of extreme shortage and/or problems with supply chains.

If 3D printing is needed, the first choice should be to ask a professional, medical printing or manufacturing company to produce the component. Injection molding is preferred over 3D printing, since bacterial hotbeds can form in layers and pores of 3D printed components. If 3D printed, the final product surface should be as smooth as possible.

Considering the used material:
  • no compressible materials,
  • no materials that can be toxic when inhaled,
  • no materials that absorb moist,
  • no leakage,
  • should allow disinfection with, e.g., 70% ethanol, or autoclaving. Check the disinfection method applied in the hospital where the component will be used.
  • should be OK with high concentrations of oxygen .
Example materials include Med610, Dental SG/LT, Teeth A2, and PETG.

The International Workgroup on Differential Multiventilation


None of the contributors, or any other person connected with this international working group, can be held responsible for the information provided on these webpages. The content provided on this website might be incomplete or incorrect. The use of the described methods or any other reliance on the information provided by us is solely on your own risk.