... breathable 2,PFE>99%,BFE>99% 3,Style:Tie on 4,Material: Non Woven 5,CE0197,ISO13485,ISO9001 ... 1 3-ply protection,highly breathable 2 Adjustable nosepiece, tie on3 PFE>99%, BFE >99% 4 high ... and bacteria.3. Low breathing resistance with high filtration efficiency. 4. With multi-layered non-poisonous, non-allergic, ... 2Customized Logo/brand printed.3Customized packaging available. Tie-on dental face mask