(1) Sudden sniffing death is particularly associated with abuse of butane , propane and chemicals in aerosols.(2) Mr Edwards explained that deodorants and other aerosols contain propellants, like butane , to dry the particles.(3) He filmed them apparently putting butane gas into a bottle and setting fire to it.(4) Sgt Tim Bright, of York police, warned: u251cu00f6u251cu00e7u251cu2510Solvents and butane can and do kill young people the first time they try them.u251cu00f6u251cu00e7u251cu00fb(5) The remaining butane and methane are recycled and reused to fuel the process.