Type II Standard - EN14683
Low Fluid Resistance: 	80 mmHg
Filtration Efficiency:      	BEF ≥ 95%
                                     	PEF ≥ 95%  @ 0.1 Micron
Breath ability 	 		Delta P  < 4.0 mm H_2 〖O/cm〗^2
Flame Speed               	Class 1

Packaging:
  Retail box: 50pcs per box
Carton box: 2000pcs per box