Health Effects of Smoking and Vaping on Pets Secondhand Smoke and Pets: A Hidden Health Hazard Dunedin Animal Medical Center Frequently Asked Questions Thirdhand Smoke Resource Center Vaping isn't just harmful to humans it's dangerous for our pets too! The aerosols from e cigarettes contain toxic chemicals and nicotine that can seriously harm pets if inhaled or ingested. Secondhand Vape Exposure: Effects, Who's at Risk, and More