Defining Chemical Free CleaningThe description for any Chemical Free Cleaning item or procedure is basic and simple: the act of cleaning has to leave no synthetic chemical residue, in the air or on any surface. There has to be no negative health outcome; it has to not demean indoor air quality; and it has to not leave an artificial chemical residue on any surface.No residue means no post cleaning pollution, no synthetic chemicals dropped in to our ecosystem, no exacerbation of tenant health, no employee chemical injury... no contrary artificial chemical effects whatsoever. Chemical Free Cleaning merely means: no synthetic chemical residue, anywhere at any time!