On April 9, 1998, there was a break-down in the Chemical Plant ZACHEM S.A. in Bydgoszcz, which resulted in two cases of lethal phosgene poisoning. Over ten years have passed since that accident. During that period there were new cases of exposure to phosgene, however, all of the victims recovered completely. The aim of this paper was to present stages and symptoms of phosgene poisoning and discuss the undertaken procedures, which led to the recovery of people exposed to toxic effect of phosgene. Med Pr 2010;61(1):101-104