The American Society for the Prevention of Cruelty to Animals published its most comprehensive guidance to date on protecting companion animals from indoor mold exposure in April 2026, providing pet owners with a practical framework for recognition, emergency response, and long-term prevention.
The guide identifies the key risk factors for mold exposure in pets: living in homes with recent water damage, living in older housing stock with known moisture problems, living in humid climates, and spending significant time in basements or other below-grade spaces where mold is most prevalent.
For emergency response, the ASPCA recommends that pet owners who suspect mold exposure contact their veterinarian immediately, relocate pets from the affected area, and arrange for professional mold testing before returning. Pets showing acute respiratory distress should be treated as medical emergencies.
The guide also provides specific guidance for different species. Dogs and cats should be monitored for respiratory symptoms, skin changes, and behavioral changes. Birds should be considered high-risk and relocated at the first sign of environmental contamination. Small mammals including guinea pigs, rabbits, and hamsters are also highly sensitive and should be relocated promptly.
The ASPCA guide is available as a free download and is being distributed through veterinary clinics nationwide. It includes a symptom checklist, a guide to finding certified mold inspectors, and a resource list for pet owners who need financial assistance with remediation costs.
