ASTM Level 3 Mask
20 pieces per box
Colour: Dark Grey (10 pcs) & Army Green (10pcs)
Size: 175mm x 95mm (±5mm)
BFE >99%, PFE>99%; VFE>99%
Details:
ISO 14644-1 Class 8 standard
ISO 13485:2016 standard
GB 15979-2002 colony quantity standard
GB 19083-2010 Rally Technical Requirements
PP non-woven fabric