What type of exhaust is required in smoking lounges according to the code?

In smoking lounges, the code mandates the use of mechanical ventilation systems for exhaust. This requirement is in place due to the need for effective removal of smoke and other pollutants generated in these environments. Mechanical systems are designed to actively draw air out of the space and expel it outside, ensuring that indoor air quality is maintained and that harmful substances are effectively vented away from occupants and other areas of the building.

Natural or passive ventilation systems rely on natural airflow and would not provide the sufficient control necessary in a smoking lounge, which generates a significant level of contaminants. An industrial exhaust system, while capable of handling high volumes of air, is not specifically designed for the conditions typical of smoking lounges and may not adhere to the specific standards required for maintaining occupant safety and comfort. Hence, the mechanical exhaust system is the best fit for this application, aligning with health and safety standards outlined in the code.