We’d guess a size Medium or possibly one size fits most adults. It is our understanding that these come in two sizes, a dual use medium & large size and size small. These appear to be the larger size. Comes with the carry bag seen in the photos. Inside of the exhale valve is a sticker that states Micronel Safety Frederick Md P/N: M-40007. The masks look very nice and possibly unused. These came from a police department overstock and could have possibly been used in training. These have an unknown manufacture date. The rubber does deteriorate over time. These are all nice and pliable but we cannot guarantee their longevity. Gas mask its designation in the Finnish. Was designed by Scott Safety under a contract from the Finnish Armed Forces and successfully replaced the M61 in 1995. It is used in many other countries too. The drinking tube is at the middle of the mask directly above the exhale valve, and is protected by a grey cover when not in use. The gas mask can be used with the filter on the left side, the right side, or potentially both with one canister on each side of the mask. The unused filter port is sealed, either with a simple plug or the M95 voice emitter. It’s designed to be compatible with any NATO 40mm filters and also accepts a speaking diaphragm. The mask’s distortion-free eyepieces are made from polyamide and allow the use of prescription lens support. It uses a six-point, mesh head harness that is said to be able of deploying in less than 10 seconds. The exterior is made of halogenated, butyl rubber- capable of delivering fire retardant properties and improved resistance to NBC and CBRN agents as opposed to other common rubbers. The oral-nasal cup is made of silicone. Various other markings are also found beneath the oral-nasal cup. More info from the web. Designed to meet the critical hazards encountered in warfare and incorporates the highest standards in NBC protection with unrivaled comfort, reliability and wearer acceptance. Lightweight and comfortable to wear even over long periods. Its low breathing resistance facilitates extended wear without adversely affecting user performance. Small silicone inner-orinasal mask provides a comfortable fit against the skin and reduces dead-space to a minimum (CO2 content of the M95 mask is 0.7%). Fast donning for immediate protection. (Donned and sealed in 8 seconds). The stretch properties of the polyester/Lycra head-harness enhance wearer comfort, particularly over long periods. The head-harness is resistant to chemicals and aging. The excellent fit and the user comfort of the M95 Full Facepiece is the result of incorporating extensive facial-form data into anatomically accurate CAD based designs. Face-piece has filter connections on both sides in order to facilitate left or right-handed operation. Close-fitting design is compatible with tactical equipment used in field operations such as optical, communication equipment, shoulder fired weapons, protective clothing and helmets. Halo-butyl rubber used for the M95 Full Face-piece is specially engineered to enhance resistance to all known NBC or CBRN agents. Excellent fire retardant properties. Available in either a Regular or a Small size. Prescription lens frames are available. Features a leak-proof hydration port allowing intake of 250 ml/min liquid and comes with a direct-connect canteen. Extremely wide field of vision, even downwards, due to the close-fitting design of the face mask. This item is in the category “Collectibles\Militaria\Surplus\Personal, Field Gear\Gas Masks”. The seller is “bookresq” and is located in this country: US.