I made a dozen masks for my husband and myself from fat quarters that I already had, some pleated, some duck face, . The duck face one have bridges made from straightened paper clips and have three layers. Each has a polythene bag and is kept in his and her boxes by the front door because they are different sizes. When we come in, the masks are soaked in Dettol washing liquid squeezed to remove excess water and wrapped in a towel for a couple of hours, then dried off in the usual way and returned in fresh bags to the box. May all seem like a bit of a fiddle, but after months of self isolating, we take no chances.