Nurse’s apparel is made of conventional fabrics since no specific requirement is needed other than comfort and durability. These fabrics consist of tissue reinforced with a polyester or polypropylene spun- laid web .
Masks often have a multiple layers structure to ensure more efficient filtration of the breath (4) while masks are made of three layers. The middle layer consists of extra fine glass fibers or synthetic micro fibers covered on both sides by an acrylic bonded parallel-laid or wet-laid nonwoven fabrics. (5) The inner layer consists of a melt – blown polypropylene and outer layer which consists a spun– bonded viscose web to provide strength and to prevent the loss of polypropylene fibers (5) masks also contain tapes which are sewn to enable them to be tied firmly into place over the nose and mouth. (5) The performance requirements for surgical face masks are high bacterial filtration capacity , high air permeability , light weight and non-allergenic.