The progress of fires could be blocked by fireproof partitions and by ventilation systems that pressurize the floors both above and below the flames to contain smoke and heat, which would be vented out through exhaust shafts.

• 防火隔间与通风系统都能阻滞火势蔓延；通风系统可以在起火楼层上下加压，将烟与热气聚在一处，再由排放管道排出。