41 Printable Olson & Pleated Face Mask Patterns by Hospitals
Apr 02, 2020·The printable sewing pattern is included. Each step in their instructions is explained well with pictures. Allina Health designed an advanced olson mask sewing pattern. It includes an adjustable nose, pleats, and ties under the chin. John Muir Medical Center have made an olson face mask. They have included printable sewing patterns.