Mask surgical face, Type 1: Fluid mask without eyeshield, single use.The mask should be made from four layers of fabric and pleated horizontally with three pleats. Have four tie backs for fastening to headFit a wide range of face shapes and sizes to permit easy breathing Have a strip of foam rubber at the top edge at the back and a nose piece of flexible material at the front which enable the mask to be shaped around the nose and face.Packaging should indicate: Bacterial filtration efficie