Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Many people assume vaping is harmless to bystanders, but secondhand aerosol can contain ultrafine particles and chemical residues. Researchers are examining how exposure may affect airways and overall health, especially for children Effects Of Second Hand Vape Smoke Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side Effects The risks of first hand and second hand vaping Eoleaf