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Electronic cigarettes require more suction than conventional brands
Stronger suction is required to smoke "electronic cigarettes" than conventional brands, with possible adverse effects on human health, researchers report. Using a smoking machine to compare the smoking properties of eight conventional cigarettes with five e-cigarette brands, the researchers also found that in the case of e-cigarettes, the aerosol density dropped after the first ten puffs, requiring still stronger suction thereafter to produce aerosol.
Source: ScienceDaily