Product Description
SMS structure (3-ply nonwoven)
Middle melt-brown nonwoven fabric: 25g
BFE (bacterial filtration efficiency): >99%
PFE (particular filtration efficiency): >95%
Production process: Seamless and supersonic wave
Latex-free soft rounded ear-loop straps
Adjustable nose clip for a secure fit
CE, ISO and FDA approved
Level 2 R
Sterile
White list
Function: used for medical virus prevention.
