Mechanical fans and ventilation are examples of _____ smoke control systems.

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Multiple Choice

Mechanical fans and ventilation are examples of _____ smoke control systems.

Mechanical fans and ventilation move air actively to control where smoke goes, which is the essence of pressurization smoke control. By creating higher pressure in protected areas such as stairwells or corridors, these systems cause air to flow from the pressurized space to adjacent areas, preventing smoke from entering and helping keep escape routes clear. This positive-pressure approach is what makes pressurization the best description for how mechanical fans and ventilation function in smoke control. Zoning describes dividing a building into compartments, often without maintaining a pressure difference. Passive smoke control relies on natural air movement and building design rather than active fans. Opposed air flow isn’t a standard category for smoke control systems.

Mechanical fans and ventilation move air actively to control where smoke goes, which is the essence of pressurization smoke control. By creating higher pressure in protected areas such as stairwells or corridors, these systems cause air to flow from the pressurized space to adjacent areas, preventing smoke from entering and helping keep escape routes clear. This positive-pressure approach is what makes pressurization the best description for how mechanical fans and ventilation function in smoke control. Zoning describes dividing a building into compartments, often without maintaining a pressure difference. Passive smoke control relies on natural air movement and building design rather than active fans. Opposed air flow isn’t a standard category for smoke control systems.

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