Printed Nonwoven Face Mask Material: non woven,unique surface water resistance and soft lining.1st layer: PP non woven.2nd layer: filter paper, BFE>95 &99%.3th layer: PP nonwoven(fabric thickness can be customized). Common size:Adult: 17.5*9.5cm, Child: 14.5*9.5cm,Baby: 12.5*7.5cm.Adjustable nose piece for easy use. Style:tie-on or ear-loop.Glass fiber free and latex free.Breathing Resistance (Delta P)95 & 99%, Particle Filtration Efficiency(PFE%)>95 & 99%