“As you shake them and wash them, the fibers will naturally stretch and, after one or two or three washes,” Deheyn tells mbg of how material face masks fare in a machine. This implies that a masks’s material might turn into porous over time, making it extra inclined to germs. While the CDC has not voiced concern that washing machines negate the effectiveness of masks in any respect, Deheyn opts to take the cautious root and wash his by hand as an alternative. Here’s his routine:
After spending years finding out how microplastics shed from synthetic fabrics within the washer, Deheyn is a powerful proponent of the great ole hand-wash—each for its environmental advantages and, maybe extra relevantly within the case of COVID, its gentleness on materials.