Objective  To examine the prevalence of second-hand smoke exposure (SHS) in indoor public places and the satisfaction to tobacco control in residents two years after the implementation of the Tobacco Control Regulation – 2019 in Hangzhou city of Zhejiang province, and to provide references for the promotion of the regulation.

  Methods  Using stratified random sampling and a self-designed questionnaire, we conducted an on-site self-administered survey among 1 320 residents aged 15 – 75 years at 26 public places (administrative departments, hospitals, training centers, places of entertainment, restaurants, hotels and shopping malls) in two districts and one county of Hangzhou city during January 2021.

  Results  Among the 1315 valid respondents, 1 101 were non-smokers; of the non-smokers, 27.52% (303) reported being exposed to SHS during the past week. For all the respondents, 67.76% reported an overall satisfaction to tobacco control in indoor public places and 64.49%, 59.54%, and 65.63% reported the satisfaction to tobacco control propaganda, supervision on tobacco control, and government agencies′ smoke-free demonstration, respectively. The results of unconditional multivariate logistic regression analysis showed that after adjusting for gender, age, education, marital status, occupation, place of residence, self-reported chronic disease, current smoking status, awareness of core knowledge about tobacco control regulations, awareness of tobacco hazards, and willingness to participate in tobacco control, the residents reporting the satisfaction to tobacco control propaganda, tobacco control supervision and law enforcement in public places, and government agencies′ smoke-free demonstration were more likely to report a higher overall satisfaction to tobacco control.

  Conclusion  The prevalence of secondhand smoke exposure in indoor public places was relatively low and the satisfaction to tobacco control was high among residents in urban and rural Hangzhou after the implementation of updated tobacco control regulation.