A tool designed to determine the appropriate ventilation capacity for a given bathroom considers factors like square footage, ceiling height, and fixture types (shower, tub, etc.). For instance, a larger bathroom with a shower and tub combination requires a higher airflow rate than a small powder room with only a toilet and sink.
Proper ventilation prevents moisture buildup, which can lead to mold growth and structural damage. Historically, bathroom ventilation relied on natural airflow through open windows. Modern construction, with its focus on energy efficiency and airtight seals, necessitates mechanical ventilation solutions. Choosing the correctly sized fan ensures effective moisture removal, improving indoor air quality and prolonging the life of building materials.