Jasper Been discusses two new papers looking at the link between smoke-free polices in cars and outdoor areas and children's smoke exposure and respiratory health.Read the paper: Effect of smoke-free policies in outdoor areas and private places on children's tobacco smoke exposure and respiratory health: a systematic review and meta-analysis: https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(21)00097-9/fulltextRead the paper: Associations between smoke-free vehicle legislation and childhood admissions to hospital for asthma in Scotland: an interrupted time-series analysis of whole-population data: https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(21)00129-8/fulltext