Operating energy use may be increased by maintaining the negative pressure requirements for interior designated smoking rooms. Designated smoking rooms in commercial properties can also add upfront costs associated with construction and design, added vent

Operating energy use may be increased by maintaining the negative pressure requirements for interior designated smoking rooms. Designated smoking rooms in commercial properties can also add upfront costs associated with construction and design, added ventilation loads, and air sealing and deck-to-deck partitions. On the other hand, increased air sealing can decrease energy costs and increase rents, as noted earlier.