随着烟雾控制的规范化，中央空气处理系统现在也有了烟雾系统模式。对实际消防经验的许多测试和评估最终表明，只要很少进行改造，暖通空调系统就可以提供非常有效、低成本的烟雾和消防安全，并有助于消防。灭火系统和烟雾控制的经济集成现在是最先进的。在一些烟雾可能较冷的空间，烟雾控制可能至少与洒水器一样，对生命和财产保护非常重要。现在，防火区周围的选择性增压要求风扇保持开启状态，该风扇最初设计用于在起点火灾条件下工作。从隔间内仅物理堵塞的隔热罩演变为在估计的30分钟最大疏散时间内通过空气压力进行的防烟罩，需要额外的风门操作，这可以适应现有的空气系统类型的执行器和控制装置。 一个新的多功能型阻尼器可以降低阻尼器的成本，因为它可能取代三个单独的空气控制、消防和平衡阻尼器。它将具有可接受的气流和控制特性，同时在烟雾控制阶段提供高温低泄漏能力，并在必要时过渡到防火阀模式。希望所有风门（在电源完好的情况下运行）都能运行以提供烟雾净化。引文:研讨会论文，佐治亚州亚特兰大，1984年

With the codification of smoke control, the central air-handling system now also has a smoke system mode. Many tests and evaluations of actual fire-fighting experiences conclusively show that with little reengineering, the HVAC system can provide very effective, low-cost smoke and fire safety and can aid fire fighting. Economical integration of suppression systems and smoke control is now the state of the art. In some spaces, where cooler smoke is likely, smoke control may be at least as and dampers that were important for life and property protection as sprinklers. Selective pressurization around the fire zone now requires fans that are left on originally designed to function in point-of-origin fire conditions. Evolving from only physically blocked heat containment in compartments to smoke containment by air pressure for the estimated 30-minute maximum evacuation period requires additional damper operations, which can adapt to the preexisting air system type actuators and controls.One new multifunctional type damper can mean damper cost reductions, as it displaces possibly three separate air control, fire, and balancing dampers. It would have acceptable airflow and control characteristics while providing elevated temperature low-leakage capability through the smoke control phase and, as necessary, making the transition to the fire damper mode. It is desired that all the dampers (operating with power sources intact) would then operate to provide smoke purging.