keywords: endotoxins toxins smokers smoke smoky
text: Smokers Fill Rooms With Toxins, Study Finds Airborne endotoxins hundreds of times higher in smoky environments    HealthDayNews -- Smoke-filled rooms may contain levels of endotoxins dozens or hundreds of times greater than smoke-free rooms, says a study by researchers at Lund University in Sweden.     Endotoxins are poisonous airborne substances produced by bacteria...