ASTM LEVEL 1 TESTED BY NELSON LABS: PlastCare USA's Level 1 masks are tested by Nelson Labs in the United States.
	
3-PLY : PlastCare USA's Level 1 face masks are made of 3 layers!
	
50 MASKS: PlastCare USA's Level 1 Sentinel masks come in boxes of 50 masks per box.
	
BENDABLE NOSE BRIDGE: Aluminum nose bridge results in tight fitment on the face.