05:49 EDT, 30 July 2021 125 shares A diving firm gave eight children carbon monoxide poisoning including one who was left fighting for his life in a coma - but its director has avoided jail. Two boys, aged 14 and 15, had to be pulled from The Manchester Grammar School's on-site pool after becoming seriously ill in the water, and a further six pupils were rushed to hospital following the class. One of the boys was placed in an induced coma after medics described his injuries as 'life-threatening'. The teenagers were exposed to 'high levels' of deadly fumes through the air tanks they were using during the lesson in June 2017, a court heard.