Abstract
The design of ventilation systems for smoking rooms must prevent the leakage of tobacco smoke and reduce harmful substances within the room. However, it often requires large airflow volumes to adequately decrease particulate matter and odors. To overcome these challenges, we developed a smoking room system that balances improved air quality with energy efficiency. This system incorporates tobacco deodorization devices, displacement ventilation, and variable air volume control based on occupancy detection. We validated the system in an actual office building, and the following results were obtained: ⑴ We achieved an effective smoke isolation with no leakage from the smoking room. ⑵ The concentrations of suspended particulates and carbon monoxide were kept low. ⑶ The system was estimated to reduce annual primary energy consumption by approximately 60% compared to conventional constant air volume systems. ⑷ User surveys indicated a noticeable reduction in odor perception. By installing such deodorizing equipment and an optimized ventilation control system, this approach enables achieving both a comfortable indoor environment and improved energy efficiency.
