Ok, lets start with the smoke detector, it depends on the type. Typically it will not set off the school bathroom smokes. ( fyi , i do this for a living). I have no issues with anything ahowing up fasyer with smoking? Can you link your data? I atually get yearly lung x rays and a full work up for asbestos exposure. Lung capacity tests and the like. So far, my lung capacity tests have gotten better? I never said it was good for you, just that its beyyer then smoking. Like i said , post your articles stating it effects the lungs and is much faster progressing. I never have sceen anything conclusive but the news saying ot was so.