What is the distance required between environmental air exhaust and mechanical air intakes for all occupancies other than Group U?

The correct distance required between environmental air exhaust and mechanical air intakes for all occupancies other than Group U is 10 feet. This requirement is essential to ensure proper air quality and ventilation in buildings. The rationale behind this distance is to prevent contaminated air from exhaust systems from being drawn back into the building through mechanical air intakes. By maintaining this separation, the potential for harmful pollutants or unpleasant odors affecting the interior air quality is minimized, thus contributing to a healthier and more comfortable environment for occupants.

The requirement is grounded in the need for effective ventilation strategies that adhere to health and safety standards. This distance helps to promote the efficient exchange of fresh air while reducing the risk of cross-contamination between exhaust and intake systems, which is critical in maintaining compliance with building codes and protecting public health.