No obstante, solamente en fecha reciente el tabaquismo "pasivo" o "involuntario", es decir, la inhalación por parte de un no fumador de aire contaminado por humo del tabaco, se ha convertido en el objeto de numerosos estudios y debates científicos.
It is only recently, however, that "passive" or "involuntary" smoking -that is to say the breathing in, by a non-smoker, of air polluted by tobacco smoke- has become the focus of numerous studies and scientific debates.
