Understanding ventilation and airflow at home

Supply and return balance

Supply registers push conditioned air into rooms while return grilles pull air back to the system. Blocking returns with furniture or rugs can make the whole system work harder.

• Locate every return grille and keep it unobstructed.
• Vacuum dust from register faces each season.
• Avoid closing many supply registers at once.

Exhaust fans and moisture

Bathroom and kitchen exhaust fans remove moisture and cooking byproducts. Running them during and shortly after use is a simple habit that supports indoor comfort.

Humidity awareness

An inexpensive hygrometer can show indoor humidity. Readings that stay unusually high or low over time may be worth discussing with a qualified professional.