US Patent 11369155 Removable face mask

A removable face mask, which includes a face mask body and a supporting body, and further includes a fastener, wherein the fastener is rotated so that a buckling portion is passed through a hole on the face mask body and embedded into a hole on the supporting body, and the face mask body and the supporting body are connected in a snap-in manner, which simplifies the structure and provides the advantages of convenience in disassembly and use.