Design: How to Make a Face Mask (Deaconess Hospital)
Design link (with video): https://www.deaconess.com/How-to-make-a-Face-Mask
Notes and Recommended Modifications: Please see documentation regarding the filtering properties of various fabrics; will only be useful to clinical settings if worn over existing PPE as designed. Do not use latex elastics if designing for healthcare.
Download from GetUsPPE.org : https://getusppe.org/how-to-make-a-face-mask/