Smoking is prohibited inside the Paris Expo Porte De Versaille pavilions.
In France, smoking is prohibited in all enclosed and covered public places, workplaces, health centres, schools and/or institutions designed to receive, educate or host the underage, as well as in all public transport and so-called “gathering venues” : hotels, restaurants, bars, tobacco shops, casinos and nightclubs.
However, smoking is allowed on café, restaurant and pub terraces, as long as they are not covered, or enclosed.