When buying facemasks or sewing your own, be sure to use fabrics that are either GOTS certified (Global Organic Textile Standard) or Oeko-Tex 100 certified.
The fabrics in our Facemask Fabrics Collection are suitable for use in sewing facemasks. As with all our fabrics, these are free of phthalates and any other harmful chemicals. Phthalates are in the vast majority of textile printing inks. They are extremely disturbing endocrine disruptors that are potent in a minuscule quantity - one in a billion.