... normal citizen.2. Anti-Flu, with a filter encased in 3 layers of non-woven fabrics3.BFE95%, BFE99% filter paper ... BRAND NEW Surgical Face Mask, with a filter encased in 3 layers of non-woven fabrics. It has high filtration efficiency ... protection4, Light weight, easy to pack for convenience5, Ideal for Protection and comfort for the surgical team6, Suitable for yard work, house cleaning, sickrooms ...