In 1 month, MIT alums/faculty develop a low-cost ventilator that works for patients who need some breathing help, but are not so sick that they need the full ventilator. ONE MONTH. NY City funded the project, these engineers are letting anyone use the blueprints.

https://www.nytimes.com/2020/04/20/technology..._th_200421

This is a NY Times article but they let people have 10 free articles a month, so if you don't have a subscription, you should still be able to read it.