Organic vapor cartridge. Swept-back design for enhanced field of view and balance. Use with 3M Reusable Respirators. Suggested Applications.Use in a variety of workplace applications, including petrochemical, chemical manufacturing, construction, transportation and electronics. When properly fitted, helps provide respiratory protection from certain organic vapors at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half face pieces or 50 times PEL with full face pieces. Full face pieces must be quantitatively fit tested to claim assigned protection factor above 10 in negative pressure mode. Please refer to specific provincial regulation for appropriate assigned protection factors for full face respirators. Not for use in environments that are immediately dangerous to life or health (IDLH). Product Characteristics: Cartridge or Filter Type: Cartridge, Gas & Vapor Protection Type: Organic Vapor, Height: 3.4 Inch, Length: 4.2 Inch, NIOSH Cartridge or Filter Assigned Color Coding: Black, US Military Spec: No.