Olivier Théraulaz is the chairman of Helvetic Vape, the Swiss association of vapers. Long-time smoker, he learned by chance in 2013 that the Swiss prohibition on vaping products containing nicotine concerned only sales and that importations for personal use was allowed. He immediately switched to vaping and stopped smoking in less than one week without giving up his pleasure. Convinced of the potential of vaping for public health, he started to advocate for the modification of the absurd administrative Swiss rules about vaping and the dissemination of clear and objective information about risk and harm reduction.