United States Army issued handheld insecticide dusting gun, Model 142, of the type used by US troops to delouse concentration camp survivors after liberation in 1945. The standard issued material used by the US Army for louse control was 10% DDT powder. Louse powder was placed in the canister and released through a pressurized hose. Air passes through the canister and the air tube tip when the control is pushed down. The powder was blown between the underwear and the skin, down the neck of the shirt, up the sleeves and into the trousers in as many directions as possible.