DIY Mask

https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=http%3A%2F%2Fwww.aitasit.org%2Fwp49%2F2020%2F03%2F15%2Fprogetti-open-source-autoproduzione-mascherine%2F
http://www.aitasit.org/wp49/2020/03/15/progetti-open-source-autoproduzione-mascherine/

https://www.opensourcemask.com/en/

https://www.opensourcemask.com/en/download-file.html

https://www.opensourcemask.com/en/download-file/8-aitasit-associazione-italiana-amministratori-di-sistema-e-telemedicina-italy.html

https://www.3dline.it/it/home/53-file-3d-mascherina-di-protezione-facciale.html

https://www.opensourcemask.com/en/download-file/6-download.html

https://www.opensourcemask.com/en/download-file/7-iczfirz-honk-kong.html
https://www.thingiverse.com/iczfirz/about

https://www.3dnatives.com/en/mask-against-covid-19-180320205/
https://www.linkedin.com/in/danielmartinezpereira

https://hackaday.com/2020/03/18/homemade-masks-in-a-time-of-shortage/