What is the recommended airflow rate for a building with four occupants?

The recommended airflow rate for a building with four occupants is set at 60 CFM (cubic feet per minute). This rate is based on guidelines that help ensure adequate indoor air quality and comfort by providing sufficient ventilation for the occupants.

When determining airflow requirements, a common standard is that each occupant requires around 15 CFM of fresh air for ventilation. Multiplying this by four occupants results in a total airflow requirement of 60 CFM. This calculation reflects an important consideration in multifamily building environments, where maintaining healthy air quality is crucial for the well-being of the residents.

In contrast, values such as 30 CFM, 45 CFM, or 75 CFM do not align accurately with the standard ventilation calculations based on the number of occupants and their needs. Using insufficient airflow could lead to inadequate ventilation, compromising indoor air quality, while excessive airflow may lead to higher energy costs without significant benefits. Thus, 60 CFM is the balanced and recommended standard to achieve effective ventilation for a space designed for four individuals.