Relevant information on airway management (the how-to actually use the technical equipment described in this page)

https://www.aic.cuhk.edu.hk/covid19/

https://www.nursingtimes.net/clinical-archive/respiratory-clinical-archive/practical-procedures-oxygen-therapy-11-01-2016/

Interesting links

Patents may apply

https://www.fastcompany.com/1661942/mit-students-invent-100-ventilator-for-disaster-zones

The above article does not mention it, but this is is the work of

• Heon Ju Lee
• Justin Negrete
• Stephen Powelson
• Alexander Slocum
• Jussi Saukkonen
• Amelia Servi https://www.linkedin.com/in/amelia-servi-00365555/
• Abdul Al Husseini https://www.linkedin.com/in/azhusseini/

Their work

http://web.mit.edu/2.75/projects/DMD_2010_Al_Husseini.pdf

Another design, simpler (apparently rougher) but easier to build with household materials: