Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Vaping (e Cigarette, Marijuana) Facts, Health Risks, Mental Health, Cough, Addiction Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand Smoke Contra Costa Health Vaping cannabis associated with cough, bronchitis and wheezing, study finds CNN Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect