Lead scientist Dr Phillip Clapp, from the University of North Carolina, said: "Our data suggest that when used in e-cigarettes cinnamaldehyde, like toxic aldehydes in cigarette smoke, significantly disrupts normal cell physiology in ways that may have implications for the development and exacerbation of respiratory disease
Monitor your purifier's filter indicators closely and inspect filters visually- visible yellowing or brown discoloration indicates saturation
"He might be having a lovely dinner party, behaving perfectly charmingly, then all of a sudden it would be as if a curtain came down over his face," recalls Patricia Morison, who played the lead in the original Kiss Me, Kate
Other signs include red, bloodshot, or glassy eyes, frequent coughing or throat irritation, and unusual tiredness or lethargy that isnt typical for the childs usual behavior