3D Printed Medical Face Shields

My husband is making 3D printed medical face shields for the nurses and hospital workers here in Oakland County Michigan, on the frontline of the COVID-19 pandemic.  
He has a large format 3D printer, but is hoping to purchase more PETG filament to produce the headband, as well as acetate sheets for the face shields.  He can produce 1 face shield every 11 minutes on his current printer.   A single face mask costs approximately $1.00 to make.
100% of donations are going to the supplies for the face shield, PETG filament to produce the headband, as well as acetate sheets for the face shields.

Please help if you can!