Based on protection allegée by @matt with inspiration drawn on by the Prusa RC2 mask. Designed to help Southeastern Virginia (USA) healthcare and first responders who are running low on masks and face shields. The design uses Write-On Transparency Films, 8-1/2 x 11 Inches with holes punched by a standard 1/4 inch hole punch.

Will be posting a template for the 8-1/2 x 11 sheet soon.

Cost is less than $2.00 USD for 4 masks, print time of 3.5hrs on Prusa i3Mk3

https://www.tinkercad.com/things/5O1ByVvusph-757cares-shield