![]() ![]() Over 8 million of the M2 series masks were produced during World War II, becoming obsolete in 1949. That problem, and its heavy canister, led to the development of the M3 series and M4 series Lightweight Service Gas Masks during 1942. The M2 series masks lacked an internal nose cup and were more prone to fogging than their successors. A waist strap kept the bag close to the body. In use, the mask was removed from the bag while the canister remained in the bag, connected by the hose. The MIVAI (M4A1) carrying bag was used with a wide right-shoulder strap, carried at waist position on the left side. The next design, the M3 Lightweight Gas Mask, made substantial improvements over the M2 series. The M2 mask was very successful in providing protection for the soldier, but weighed about 5 pounds and was too bulky and inconvenient to use. M1VA1 Gas Mask Bag, used for the M1 and M2 series masks and others, sometimes with additional markings to designate which mask is enclosed. The M2A2 and M2A3 had a round outlet valve with concentric circle grillwork. The M2A1 outlet valve was flat, egg-shaped with no grill. Improvements to the outlet valve resulted in the M2A2 in 1942 and the M2A3 in 1944. The M2 Service Gas Mask was produced in three sizes: small, universal, and large. The M2A1 Service Mask used the facepiece of the training mask but replaced the training canister with the corrugated tube and M1XA1 filter canister arrangement from the M1A2 Service Mask. The M1 Training Mask was carried in a deep-pocket shoulder bag with a snap opening at top and a waist string attached to D-rings. The M1 Training Mask was standardized as the M2A1 Service Gas Mask in 1941.Īs the MI Training it used a cylindrical canister attached directly to the facepiece at the inlet valve, projecting downward to the wearer's chest. In 1939, the US Army developed the lightweight M1 Training Mask with a fully molded rubber facepiece, the first mai service respirator to eliminate stockinet cloth coverings. The M2 was developed and used during the second world war, from 1941, to 1949. Aircraft played a major role in the conflict, including in strategic bombing of population centres, the development of nuclear weapons, and the only two uses of such in war.The M2 mask was used by the US Army, replacing the M1. Tens of millions of people died due to genocides, premeditated death from starvation, massacres, and disease. World War II was the deadliest conflict in human history, resulting in 70 to 85 million fatalities, with more civilians than military personnel killed. In a state of total war, directly involving more than 100 million personnel from more than 30 countries, the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. It involved the vast majority of the world's countries-including all the great powers-forming two opposing military alliances: the Allies and the Axis. World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945. This particular status was first recognized under the Geneva Conventions with the First Geneva Convention of 1864. ![]() Non-combatant is a term of art in the law of war and international humanitarian law to refer to civilians who are not taking a direct part in hostilities persons, such as combat medics and military chaplains, who are members of the belligerent armed forces but are protected because of their specific duties combatants who are placed hors de combat and neutral persons not involved in fighting for one of the belligerents involved in a war. Chemical specific filters can last up to 20 hours in an NBC situation. Most combined gas mask filters will last around 8 hours in a nuclear biological chemical situation. Hawaii was of special concern and thousands of US military training masks were rushed in for the civilian populations use. The gas mask only protects the user from digesting, inhaling and contact through the eyes. Most gas masks are also respirators, though the word gas mask is often used to refer to military equipment, the scope used in this article. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face. Noncombatant Adult Gask MaskĪ gas mask is a mask used to protect the wearer from inhaling airborne pollutants and toxic gases. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |