North Carolinians for a Tobacco Free Generation Happy National Pet Day They trust you with everything, including the air they breathe. Secondhand smoke and vape aerosol can harm Instagram Effects of Secondhand Smoke on Health and Pets Secondhand (and Third Hand) Smoke May Be Making Your Pet Sick McCleary Animal Hospital One of our customers has had first hand experience of this recently. One cigarette butt can contain enough nicotine to poison a dog. Especially puppies and smaller breeds. What can happen Second Hand Smoke Around Pets The Grey Muzzle Organization Secondhand smoke and e cigarette aerosol exposure in dogs and cats: A scoping review with implications for smoking cessation among pet owners