Properly functioning exhaust fans in key areas of the home such as bathrooms and kitchens help to remove moisture, odors, and contaminants from the air, preventing mold growth, reducing humidity, and improving overall air quality.
Optimal
The exhaust fan is properly sized for the room and efficiently removes moisture, odors, and pollutants. It is vented to the exterior of the home and regularly maintained to ensure strong airflow. No signs of mold, mildew, or condensation are present, and air quality is excellent.
Cautionary
The fan is operational but may not be fully efficient in removing moisture or odors. It may need cleaning or maintenance, and there could be minor ductwork issues. Some signs of condensation or lingering odors are present, indicating that the fan is not performing at its best.
Hazardous / Out of Range
The exhaust fan is either broken or inefficient, leading to excessive moisture buildup, mold growth, or poor air quality. The fan may be improperly vented or not functioning at all, requiring immediate repair or replacement to prevent long-term air quality issues and structural damage.