... ISO certificates2, Anti-Flu, with a filter encased in 3 layers of non-woven fabrics3, BFE95%, BFE99% filter ... Surgical Face Mask, with a filter encased in 3 layers of non-woven fabrics. It has high ... 1, Anti-Flu, with a filter encased in 3 layers of non-woven fabrics2, With elastic ear ... fluid and respiratory protection4, Light weight, easy to pack for convenience5, Ideal for Protection and comfort for ...