This listing is for a genuine MSA Millennium Series Gas Mask in Size Large (L). This high-quality mask is designed for CBRN (Chemical, Biological, Radiological, and Nuclear) defense and is widely used by military and law enforcement professionals. Size: Large (Marked “L”). NSN / Part Number: MSA92A020-024. Manufacture Date Stamp: 91 (1991). Markings: “US”, “C3″, “MSA”, “2G06″, “M3″. Filter Included: Yes – Filter is marked with “MMB02G023-006 23106″. Lens: Dual large-view lenses. Strap Harness: Fully intact and adjustable. Interior: Clean, with voice diaphragm and internal nose cup visible. Condition: Pre-owned in excellent condition. The mask shows minimal wear and has been stored properly. The rubber is supple with no signs of cracking or damage. Filter included, but expiration/use status of filter is unknown and should be replaced for safety-critical applications. This pre-owned item may show signs of wear consistent with its age and use. Please refer to the photos and description for details. No guarantees are made regarding longevity or future performance.