Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke. We've updated our vaping during pregnancy resource. Created in partnership with ASH, the Royal College of Midwives and Sands, the infographic has important guidance around vapes and pregnancy. The resource is now Vaping before, during and after pregnancy: leaflets and infographics ASH Characteristics of second hand exposure to aerosols from e cigarettes: A literature review since 2010 ScienceDirect