as we all know chlorine gas (bleach) cleans,kill germs and remove rust and ammonia too does the same..but the mistake so many people made was too mix the both chemicals..as a novice you may not know how chlorine and nh3(ammonia) is reacting but what you will witness is a yellowish cloud coming off, immediately you inhale it,it shocks you and block your lungs..you will hardly receive oxygen..your chest begins too burn, only the fittest survives at this point..the next is death so please be careful.. Almost killed my mum if not for the people around her.