On the 22 January 2018 it is alleged a “chlorine cylinder” landed on a rooftop in Douma, practically undamaged, before releasing its load and in turn suffocating 20+ people, including children. The same cylinder was pictured elsewhere alleged to have brought down a building before being cleaned and presented at a press-conference, again with minimal damage. I investigate the cylinder, the claims and its 8 week tour of Douma.