(1) Harness attaches to the M3 and M3A1 masks with a riveted clip, flat against the mask and near the edge. This table lists the components and construction details across the M3 and M4 series variants: ![]() ![]() It can be difficult to distinguish the M3 from the M4 series masks due to the identical facepiece. Identifying the M3 and M4 Series Lightweight Service Gas Masks īoth the M3 and M4 series Lightweight Service Gas Masks use the M2A2 facepiece, but have a shorter hose and a different canister than the M2A2. A modification to the outlet valve resulted in the M4A1 Lightweight Mask in 1945. ![]() The M4 series masks were made of natural rubber in olive drab color. It had many features in common with the M3 series, including the M2A2 facepiece, internal nosecup, outlet valve, shorter hose and lighter M10A1 canister. In 1942, the M4 Lightweight Mask was standardized to add additional improvements. The M3 series remained in use until obsoleted in 1949. Over 13 million of the M3 series masks were produced during World War II. In 1944, the M3A1 mask was released featuring an improved outlet valve. The Neoprene was found to become unusable in cold weather due to hardening of the mask under those conditions while the natural rubber remained flexible even in cold weather. The M3 was manufactured from both grey rubber and black Neoprene (synthetic rubber). The corrugated hose between the facepiece and the canister was shortened to save materials. The changes and improvements retained the same level of protection to the wearer as the M2 series mask. It used the molded rubber facepiece from the M2A2 mask with the addition of an interior anti-fogging nosecup, and an improved, lighter M10A1 filter canister. In 1942, the M3 Lightweight Service Gas Mask was standardized, weighing only 3.5 pounds vs. The unsatisfactory weight and bulk of the M2 series masks led to the development of an improved service gas mask. NBC Respirator Mask Mk I - Indian Kareta-M copy.The M4 Lightweight Service Mask was a gas mask used by the United States during World War II. Initially intended for military use only, but then its use is expanded for civilian use too. Intended for civilian and industrial use. It is in service in Hungary, Croatia, Slovenia and possibly in many other countries. It also has a transitional thread, being able to take STANAG 4155 and GOST thread filters.ĪBC-92 - Austrian chemical suit using a probably Kareta-M mask. PG-1 - A Bulgarian private company’s copy of the M65, with a larger exhale valve/voice diaphragm. Made in several versions for: Police/Prison, Naval and Military. It uses a pale blue rubber with black plastic furniture. T62, T72, T3-75 - It's another licensed copy made by the Republic of China (Taiwan). Iraqi M85 - Is an copy of the Romanian M85 which is a licensed copy of the M65Z. M74 and M85 - Are Romanian licensed copies of the M65Z. M6-87 - Issued in Spain, very similar to the M15. But with a few more features, such as a voice diaphragm and a drinking tube on the side of the mask. M15 - This Israeli gas mask bears some resemblance, and was likely based on the M65. The mask is also very commonly seen in combination with older German charcoal lined NBC suits as well as the newer "Zodiac style" NBC suits, although today the M65Z is still being used in training it has officially been replaced by the M2000 in 1999 and is slowly being taken out of service completely. The company Dräger was contracted by the German military to produce both the M65 and M65Z. or chrome metal clamps, which can be seen around the inhale and exhale ports. The M65Z has a wire mesh that is located in the inhale and exhale assemblies, the mesh's function is to keep out dirt and any other foreign objects out of the inhale and exhale ports.īoth intake and outlet assemblies are held in place with two O.D. This flap also adds comfort to the mask when it is worn. The mask also has a 3mm wide rubber peripheral seal which surrounds the entirety of the facepiece to form a better seal around the wearer's face. plastic that matches the color of the mask's facepiece, and the oral-nasal cup of the mask is made of the same rubber as the facepiece. ![]() The inhale and exhale valve assemblies are constructed of an O.D. The exhale valve with 19 holes which air passes through them upon exhalation. Upon inhaling, air passes under the chin through two inlet valves so that the lenses don't get fogged up. This mask's intake valve assembly uses NATO 40mm filter and is compatible with all NATO compliant-filters. Sizes are 1 (large), 2(medium) 3 (small). The mask uses an all rubber 5-point head harness.įacepieces would be sized and embossed with a large letter on the centre of the rubber above the eye lens. The mask features two triangular eyepieces which are made of acrylic glass.
0 Comments
Leave a Reply. |