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.