While early research suggests it may not be as dangerous as secondhand smoking, it's still not harmless, experts say. https: www.wate.com news does vaping cause secondhand smoke doctors explain the side effects ?utm_medium=social&utm_source The risks of first hand and second hand vaping Eoleaf Thirdhand Smoke Resource Center Protecting Californians Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects Passive vaping time we see it like secondhand smoke and stand up for the right to clean air