Check the listing for details. Sealed M40 Military-Spec Gas Mask with 40mm NATO CBRN Approved Filter ALL NIB. Condition: New. Listed at 387.10 USD. 3M True US-Mil-Spec FR-M40B Chem-Bio/NBC Protective Gas Mask SMALLincludes: 3M FR57 Filter for NBC / CBRN Protection BRAND NEW! 'exp 10/2025' ALL FACTORY SEALED! (3M Sealed CBRN APPROVED Respirator & CBRN Approved Filter!!) This is a Highly sought after filter for NBC/CBRN/Riot protection, the 3M FR-57 40mm NATO Multi-Gas filter is NIOSH CBRN Approved with FR-M40B respirators & can be used with PAPR's (Powered Air Purifying Respirators & standard 40m threaded gas masks. The FR57 filter [ 3M p/n RBE-57 ] is NIOSH Approved with the FRM40B-10 Protective Mask. USA NIOSH Approval # TC-23C-2071. Protection Classes: OV/SD/HC/CL/CD/HF/AM/M/FM/HE (P100/P3) Highest Biological Protection Rating. BRAND NEW / Vacuum Sealed in Heavy Mil-Spec Foil (when kept sealed will keep filter fresh for a minimum of 5 years, however industry experts agree that while protected from moisture/air, these NBC filters should remain effective for 10-15 years or more. For that reason, rather than marking the FR57 filter with an expiration date, 3M Protection in cooperation with the US Military (shelf-life extension program) list a test/inspect date instead of an expiration date. At that point, the filter can be inspected to confirm integrity of the packaging and/or conduct testing, etc. & then extend the shelf life for an additional 5 or 10 years. Made in 10/2020, these filters are printed with a exp date of 10/2025 & typically have the shelf life extended to 2030 - 2035 or longer if the testing/inspection determines that the vacuum seal remains perfect/intact, etc. This item is considered 'significant military technology' & therefore is subject to ITAR (International Traffic in Arms Regulations) & may not be shipped outside the United States without prior approval being obtained from the US State Department (Office of Defense Trade Controls). For wholesale/bulk purchases AGM / Approved Gas Masks can submit for an export permit on the end-users behalf, however approval is at sole discretion of US State Dept Defense Trade Controls Office Manufacturer: 3M Personal Protection, St. Paul, MN - Made In USAMfr part number: (Facepiece: 5-1-1001-20) / (Filter: RBE-57)NSN# 4240-01-415-4518US Government Contract #: (M40 was the primary US Military Gas Mask System)Lot No: PBA13D203-022CAGE Code# AGM / Approved Gas Masks - Trusted suppliers of personal protective equipment to military, law enforcement & civilian users since 2001. Our customers include 1000's of major police departments, government agencies, fortune 500 companies, all the major media outlets & governments worldwide! TOP RATED PLUS SELLER (Excellent Customer Ratings on eBay for last 20 years!) >see for yourself, our feedback says it all! ALL ORDERS SHIP THE SAME DAY OR WITHIN 1 BUSINESS DAY! >99.6% of orders to be exact! Copyright 2001 - 2023, all images & text protected / all rights reserved - any reproduction without the express written consent of AGM / Approved Gas Masks is prohibited. Violations will be subject to monetary damages as per USPTO / United States Patent & Trademark Law / US Copyright Act.