Vaping, Second Hand Smoke, and Kids Medical Associates of Northwest Arkansas How secondhand smoke, thirdhand smoke & vaping affects kids 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 According to the American Heart Association, the risks of secondhand smoke from vapes are still being discovered. Learn about the dangers of secondhand smoke from vapes.