Does Vape Set Off Smoke Alarms Do Vapes Set Off Smoke Alarms? What Are the Health Implications of Pregnancy and Vaping? Empowered Women's Health District officials said Halo sensors are helping detect vaping, though staff have said there's occasional false alarms. Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn SA Health Smoking and vaping during pregnancy can be harmful to your unborn baby. The chemicals in cigarettes and vapes can damage your baby's Instagram