If you suspect mold in your home's central air system, why should you avoid running the air conditioner?

• A. To reduce humidity
• B. To prevent circulating mold spores
• C. To save energy
• D. To avoid cooling

Answer: (B)

When mold is suspected in the central air system, the main concern is that turning the system on can push air through the ducts and blow mold spores into living spaces. Running the air conditioner creates airflow that can aerosolize spores and distribute them to rooms you don’t expect, potentially spreading contamination throughout the house. Shutting the system down helps stop dispersing spores while you arrange professional inspection and remediation. While reducing humidity can slow mold growth, the immediate risk here is spreading mold spores, not cooling or energy use. If you suspect mold, turn off the HVAC and contact a licensed professional to evaluate and clean the system, and address any moisture sources.