NanoHack, an open-source 3D printed mask against COVID-19

*This device has not been certified. Before you begin 3D printing this medical device, you should check with industry professionals what material to use, what measures and precautions to take, etc. Medical validation is required before using this mask.

The manufacturer of 3D printing materials Copper3D has just put online an open-source STL file of a N95 mask, which can be 3D printed and used against the COVID-19 virus. Its Hack The Pandemic initiative is global and aims to mobilize all manufacturers of machines, fablabs, printing services, etc. to create these masks quickly – the lack of which is a burden for hospitals and healthcare professionals. For some, it is difficult to be entirely reassured about the effectiveness of the mask called NanoHack, however, the company claims that many scientists are behind this project and that a patent application has been filed. Copper3D is a new player in the medical field, nevertheless the various products it has developed, including its antibacterial materials based on copper nanoparticles, do suggest that its solutions are effective.

Of course, there is a lot of talk about the N95 mask at the moment. It is designed to provide respiratory protection for its wearer, with a filtration efficiency level of 95% against particles present in the air. It would therefore allow to reduce the risks of contamination in the current context, and it is more effective than disposable masks (also short in supply). Additive manufacturing could help to cope with this shortage, however, beware, a 3D printed mask is likely to be less effective than a traditionally designed mask. But in the face of emergency, it is a viable alternative.