Dust Protector Blank Face Mask for sublimation, non-medical, (10) pack. White with black trim, 5.52" x 7.88", 3 layer. 100% polyester outer layers, 100% cotton inner layer. Dust protector protects mouth and nose, with comfortable, breathable material. CDC now advises the use of simple cloth face coverings to slow the spread of COVID-19 and help people who may have the virus and do not know it from transmitting it to others. Cloth face masks fashioned from household items or made at home from common materials at low cost can be used as an additional, voluntary public health measure.