Those protocols are designed for surgical masks where the objective is to protect the wearer from droplets. The objective of cloth masks is to protect other peo

Those protocols are designed for surgical masks where the objective is to protect the wearer from droplets. The objective of cloth masks is to protect other people from your droplets (although there is a small protective effect for the wearer too). Even cloth masks with poor fit around the nose have great cost/benefit ratio for reducing transmission.