Side-stream smoke, released from the burning end of cigarettes between puffs, contains an even higher concentration of these toxic chemicals
E-cig fluid contains numerous chemicals known to be toxic to the respiratory system, such as carbonyl compounds, aldehydes, fine particulate matter, metals, propylene glycol, glycerol, formaldehyde, volatile organic compounds (VOCs), and flavoring chemicals 7,8,9,10,11,12,13,14,15,16,17 , and bacterial endotoxins and fungal glucans 18
In addition, almost one-seventh (13.9%) of teachers reported smoking (Figure 1)
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How many puffs equals one cigarette