"These cases provide the necessary guidance to the analysis of fact in this case. If I am to believe the worker he remains materially worse in his sensitivity and response to smoke. I do accept his evidence in this regard. On the basis of the evidence I find there has been a change in the reactivity and sensitivity in the lining of the air passages leading to the worker’s lungs. This change has been brought about by the cigarette smoke he was exposed to at work. It has led to a disability and an ongoing incapacity in the sense that it is still operative. It makes the worker unfit for any work where he might be exposed to any cigarette smoke."