University of Florida Ventilator

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https://ufhealth.org/news/2020/uf-researchers-lead-way-rapidly-designing-building-low-cost-open-source-ventilator

https://simulation.health.ufl.edu/technology-development/open-source-ventilator-project/

Super simple. Air pressure powered. Manual override. Limited BOM info.

BOM

Inspirator - Sprinkler Valve
Bosch BMP280 automotive pressure sensor - [1]. 300-1100 hPa (up to 1.1 atm). Max breath pressure is 200 cm H20, or 20kpa, or 1-2 psi [2]. The sensor goes up to 110,000 pa, so about 1.4 psi.

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