[fireman328]

Originally Posted by andyl

Employers are going to have to think hard about their responsibilities to staff and potential liabilities if they do not protect them from smoke: http://news.bbc.co.uk/1/hi/health/4386122.stm

That does not mean a ban on smoking, there are many occupations which require protective masks or in my previous career breathing equipment which was provided and used as part of the overall health and safety policy.
If a person is employed in a hazardous area then sufficient and adequate equipment must be available to the workers at risk. Are we going to stop paint spraying, fumigation, crop dusting or the production of carcinogens, if so where will it end ?