The law regulating the use of electronic cigarettes is still too vague, the Sciensano public health institute reports on Thursday.

The law “imposes restrictions only on the presence of nicotines in e-liquids. Other substances are not explicitly banned and therefore we still often find them,” Sciensano said. “These are nicotine impurities, volatile organic compounds and diacetyl and acetyl propionyl flavour enhancers. The latter are safe in food but can be harmful when inhaled over long periods of time,” said Sophia Barhdadi, a researcher at Sciensano, based on sample analyses.