Issues with some positive pressure devices.
This is about a week old, but https://hackaday.com/2020/03/12/ultimate-medical-hackathon-how-fast-can-we-design-and-deploy-an-open-source-ventilator/ notes that:
"CPAP, BIPAP, or Hi-Flo oxygen NIV are all out. These systems aerosolize the virus making it almost guaranteed that anyone around them will get infected.
What we need is a Nasal cannula-based NIV. This system humidifies air, mixes it with oxygen and then pushes a constant stream of it into people’s lungs. If we can design a simple and working system we can give those plans to factories around the globe and get these things made. If the factories fail us, let’s also have a version people can make at home."
Not sure whether this is completely relevant to the PPH-PPE project, but it seemed the most appropriate. Also, not familiar with this technology area, so opinions on this issue would be welcome.