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L-702 Gas Mask

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The L-702 Gas Mask was a gas mask manufactured from 1938 to 1940 by the Société Belge de l'Azote et des Produits Chimiques du Marly (also known as SBA) in Liege, Belgium. It was made out of the same rubber as its predecessor, the SBA respirator, but the face piece was of a simpler design and there was no way to replace the eyeglasses if they were damaged. It was mass-produced in its two year lifespan, with some estimates saying over a million were produced, and is a relatively common mask today.

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Civilians

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Belgium

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1938

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The L-702 Gas Mask was a gas mask manufactured from 1938 to 1940 by the Société Belge de l'Azote et des Produits Chimiques du Marly (also known as SBA) in Liege, Belgium. It was made out of the same rubber as its predecessor, the SBA respirator, but the face piece was of a simpler design and there was no way to replace the eyeglasses if they were damaged. It was mass-produced in its two year lifespan, with some estimates saying over a million were produced, and is a relatively common mask today. The L-702 was made in different sizes ranging from 0 (child) to 5 (extra large), the most common sizes being 2 and 3 while 0 and 5 are rare. The L-702 uses a metal filter which is attached to a bakelite filter connector, containing contains only a simple rubber disk to act as the inhale valve and utilising a set of holes on the underside as an exhale valve. Depending on the country it was manufactured for, the mask's intake will have a diameter of 25mm, 40mm, or 42mm, making filter interchangeability difficult.