US Patent 11944138 Face mask and method for manufacturing thereof

A face mask and a method for manufacturing the face mask are disclosed. The face mask comprises a sheet, a first lateral flap, a second lateral flap, a first loop, a second loop and an elastic film. The sheet comprises a central portion, a first lateral portion, a second lateral portion and an opening. The first lateral flap is coupled to the first lateral portion to form a first chamber. The second lateral flap is coupled to the second lateral portion to form a second chamber. The first loop connects to a first strap and is coupled to the first lateral flap. The second loop connects to a second strap and is coupled to the second lateral flap. The elastic film is coupled to the sheet and covers the opening.