100% spun-bonded polypropylene non woven fabric + middle layer high filtration(95/99%)  tissue paper(or active carbon), or simply spun-bond + melt-blown + spun-bond nonwoven fabric(SMS in short) are hypoallergenic, fiberglass free, latex free, fluid resistant for making disposable face mask with enclosed padded nose piece and elastic ear-loops or open tie-on straps. mascarilla desechable.