Do you smoke and live with a cat or dog? Your pet may be at higher risk of cancer because of secondhand smoke and toxins. Learn how you can protect your pets: Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Veterinarians warn that vape clouds in the home are just as harmful as regular smoke. Pets can develop allergies, coughing, and breathing difficulties, and citrus flavored e liquids are especially toxic, settling on fur, Effects of second hand smoke on pets