Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Bringing back evidence based Thursdays Secondhand vaping isn't harmless and the evidence is growing. A recent article from Medical News Today highlights what many of us in healthcare are already seeing: Secondhand smoke and vape can trigger your child's asthma attacks. Smoking and vaping are unhealthy for everyone but especially harmful for people with asthma. Whether at home, in the car, or Ever puffed a vape around others thinking it's harmless? Think again. Inhaling vapor from e cigarettes exposes you to harmful chemicals, such as formaldehyde. These toxic substances can be passed on to