A Europe-wide survey, coordinated by the Mario Negri Institute, focusing on the phenomenon of secondhand cigarette smoke in homes in 12 countries during 2017-2018 has just been published in ERJ Open Research. The survey, which involved 11,734 people in total, shows that smoke-free homes are gradually increasing in Europe, with an increase of about 1% per year. It also shows that women, older people, people with higher levels of education and those living with children are more likely to ban smoking in their homes. The survey showed that about 70% of people surveyed do not allow smoking in any part of their homes. An additional 18% said they enforce some rules but do not make their homes completely smoke-free. Surprisingly, about 13% of smoke-free homes still allow visitors to smoke. The proportion of smoke-free homes by State, from highest to lowest, was as follows: England 84.5%, Ireland 79.4%, Latvia 78.9%, Italy 75.8%, Germany 75.0%, Portugal 74.0%, Poland 69.6%, France 65.1%, Spain 57.6%, Bulgaria 56.6%, Romania 55.2%, Greece 44.4%. Data coordination and analysis were carried out by the Mario Negri Institute's Lifestyle Research Laboratory. In Italy, the sample surveyed included about 1,000 people, interviewed between 2017 and 2018, who were carefully selected to represent the adult population. They were asked whether smoking was allowed inside the home and, if so, whether there were any restrictions on smoking indoors. It was found that Italy, with 75.8% of homes with total smoking restrictions, ranked fourth among the states considered, with 13.4% of homes with partial restrictions and the remaining 10.8% with no restrictions at all.