A study by renowned anti-smoking expert Dr Konstantinos Farsalinos analyzes and compares carbonyl emissions from an HnB device, an e-cigarette and a regular cigarette. The products used in this study were PMI’s IQOS, both regular and menthol variants, the Nautilus Mini e-cigarette, a tank-type atomizer tested with a tobacco-flavoured liquid at 10 W and 14 W and a Marlboro Red cigarette. Aerosol and smoke were collected in impingers containing 2,4-dinitrophenylhydrazine [...]