... on -Non-irritating to skin -Anti-Flu 1.Used in Hospital or by normal citizen.2. Anti-Flu, ... with a filter encased in 3 layers of non-woven fabrics3.BFE95%, BFE99% ... and is best to prevent from the horrible flu in this season. Also helps avoid some disease, infection and reduce ... Details: 1, Anti-Flu, with a filter encased in 3 layers of non-woven fabrics2, With elastic ear ...