Second hand vape smoke linked to increase of risk of poor respiratory health 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 The risks of first hand and second hand vaping Eoleaf Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM