Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Is it risky to smoke or vape around companion animals? RSPCA Knowledgebase Secondhand vape plumes could form lung damaging radicals American Chemical Society Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center In secondhand vape, scientists smell risk Health cherokeephoenix.org