1 yard - ByAnnie - Mask Filter Material - Washable spun-bond polypropylene - 1yd x 20in
Lightweight and breathable, this top-quality filtering material is perfect for face masks.
We recommend using this filter material in conjunction with tightly-woven quilting cottons for a stylish design and good quality filtration.
This material has a melting point of approximately 320℉. Do NOT use iron directly on the mask filter material. If you must iron your project, be sure to use a low heat setting and a pressing sheet or other heat barrier.
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