Refrigerant is sold in canisters similar to small propane canisters used in portable gas range. Ammunition was shipped in 25-round metal canisters. Gunpowder canisters were ignited to create rocket jets. During the subsequent investigation propane gas canisters were removed from the car. Various demonstrations were broken up by using tear gas canisters to disperse crowds. The police responded with tear gas canisters. Fuel is replenished by picking up gas canisters or batteries along the way. There were 6 metal canisters per wooden crate (150 rounds). Their leaky nitro canisters explode beneath them while they hang from ropes. Bavar-373 will utilize Sayyad-4 missile, which are contained in two rectangular launch canisters. Additionally, an onboard oxygen generating system eliminates the need for heavy oxygen canisters. The smoke and the spent canisters contain suspected carcinogens. Most pumps use carbon dioxide and standard-threaded 16g CO canisters. The Arjun can carry 39 rounds in special blast-proof canisters. SCE decided on Holtec International to design the dry storage canisters.