M40 Military Issue Gas Mask/Respirator 40MM NATO New Sealed Size Medium. This mask comes with several unique design features suited for first responders. The silicone allows for excellent fit testing results and maximum comfort while the optional butyl rubber second skin protects the face piece increasing respirator life and decreasing decontamination costs. An optional butyl coated nylon hood is available that covers the head and neck and is easily donned to add additional protection against chemical agents (not included). An integral drinking device permits the user to replenish fluids without having to remove the mask (canteen not included). A dual eyepiece format permits the respirator to easily interface with optics and to fold for storage. Condition: New in plastic. Only removed for pictures. Please see pictures as this is the item you will receive. MOD Armory does not export! We reserve the right to obtain an “End User Certificate” requesting proof of US Citizenship for any controlled items. We thank you for your understanding and respect with regards to this policy.