... Approved 3,BEF90%~99% 3-ply face mask with filter1, 17.5*9.5cm,2, 3-ply, nonwoven face mask or with the ... isolation layer(melt-blown fabric) .3, we produce in ... in making various healthcare and medical supplies. Quality consistent with the ISO9001, ISO13485, CE standards and China State Food ... .Let's begin the win-win cooperation! 3-ply face mask with filter