Why should you conduct regular airflow and ventilation checks in a kitchen, and what are signs of poor ventilation?

• A. Proper ventilation reduces heat, smoke, odors; signs: condensation, grease buildup, poor combustion, high humidity, headaches.
• B. Ventilation reduces energy usage only.
• C. Ventilation is only needed in winter.
• D. Ventilation has no impact on cooking environment.

Answer: (A)