Fabric Face Mask Instructions - Kaiser Permanente
Mar 02, 2020·jersey knit 6 to 8 oz + All masks will use 2 layers of fabric per the pattern and instructions SEWING INSTRUCTIONS: + Use 2 1/4 or 2 ½ stitch length on your sewing machine (or 10-12 stitches per inch). Back-stitch for strength where indicated. The seams need to be strong enough to withstand wearing, but also heavy-duty washers and dryers.