Smoke Exhaust Systems

Smoke exhaust system is a critical safety feature in buildings, especially during a fire. It removes smoke, heat, and toxic gases from indoor spaces, ensuring safer evacuation routes for occupants and protecting the structure from fire damage. During a Fire Disaster, Smoke is as Dangerous as Fire.

2021 Number of Deaths by Cause During Fire in Japan

Direct Impact:

– Danger of poisoning by carbon monoxide.

– Mental panic due to fear.

– Dyspnea due to lack of oxygen.

– Dyspnea due to inhalation of heated smoke, which could lead to respiratory burns.

Indirect Impact:

– Prompt EVAC and RESCUE is prevented by poor visibility due to smoke.

– Hot smoke preheats surrounding objects, making them more flammable.

Advantage of Smoke Exhaust Systems

A smoke exhaust system is designed to expel toxic smoke and hot gases from the fire-affected area and vent them safely to the outside environment. This process serves two critical purposes:

  1. Providing Sufficient Time for Evacuation: By effectively clearing smoke and reducing heat within the fire zone, the system ensures that occupants have adequate time to evacuate the building safely, minimizing the risk of smoke inhalation and disorientation that could otherwise hinder escape.

  2. Supporting Firefighters’ Efforts: The removal of smoke and hazardous gases helps to improve visibility and air quality within the building, enabling firefighters to work more efficiently. This enhanced environment assists them in locating the source of the fire, performing rescue operations, and containing or extinguishing the blaze more effectively.

By performing both of these crucial functions, the smoke exhaust system significantly improves overall safety during a fire emergency.

Smoke Exhaust Component

  • Smoke Suction Port
  • Smoke Exhaust Damper
  • Smoke Exhaust Duct
  • Fire Damper
  • Smoke Exhaust Fan

We offer 4 type of packages for Smoke Exhaust System. Check Description below for more information regarding each packages.

 

Smoke Exhaust Systems required Room Package in building areas where people stay, such as rooms or shops.

Room Package  Products:

  • Smoke Suction Port : 1 each
    Purpose : Suction Port for noxious smoke generated by fire.
    Specification : Manufactured with noncombustible materials.
  • Smoke Exhaust Duct : 1 set
    Purpose : A highly airtight duct that allows noxious smoke to pass through.
    Specification : Made of Stainless-Steel Plate, Zinc-Coated Iron Plate (with a Zinc Coating weight of 180g/㎡ (Z18) or more), or Steel Plate with a thickness of 1.6mm or more. Rust-proof painting is applied if necessary.
  • Smoke Exhaust Damper : 1 set
    Purpose : In an emergency, it is designed to have high airtightness to only draw in smoke from the fire location.
    Function : The blades open by smoke detectors or switch operation.
    Specification : Airtightness Q < 0.032 × ΔP^(-0.5) m³/min. (per 1m length of duct opening perimeter)
  • Fire Damper : 1 each
    Purpose : After evacuation is complete, it prevents the expansion of the burning area.
    Function : The blades close by the operation of a thermal fuse.
    Specification : 280℃ Fuse is attached.

Specifications:

  • Duct Size : 300×300 (mm)
    The air handling capacity at a wind speed of 10 m/s is 54 m³/min.

Notice :
The price will vary if the room size or duct size is changed by the design. Please request Estimation.

Check our e-catalogue for more details.

The Corridor Package is the part that connects the rooms to the Vertical Package. It plays a role in linking the ducts from each room to a single vertical duct, and this necessary component of the Smoke Exhaust System is called the Corridor Package.

Corridor Package Products:

  • Smoke Exhaust Duct : 1 set
    Purpose : A highly airtight duct that allows noxious smoke to pass through.
    Specification : Made of Stainless-Steel Plate, Zinc-Coated Iron Plate (with a Zinc Coating weight of 180g/㎡ (Z18) or more), or Steel Plate with a thickness of 1.6 mm or more. Rust-proof painting is applied if necessary.
  • Fire Damper : 1 each
    Purpose : After evacuation is complete, it prevents the expansion of the burning area.
    Function : The blades close by the operation of a thermal fuse.
    Specification : 280℃ Fuse is attached.

Specifications:

  • Duct Size : 800×800 (mm)
    The air handling capacity at a wind speed of 10 m/s is 384 m³/min.

    Notice :
    The price will vary if the room size or duct size is changed by the design. Please request Estimation.

    If the number of Corridor increases, from one to two, it doesn’t simply double. We will check the building plan and make the best suggestion for you. Please feel free to contact us.

Check our e-catalogue for more details.

The package required for the Smoke Exhaust System in building areas where people hold an event is called Hall Package.

Hall Package Products:

  • Smoke Exhaust Port : 3 each
    Purpose : Suction Port for noxious smoke generated by fire.
    Specification : Manufactured with noncombustible materials.
  • Smoke Exhaust Duct : 5 set
    Purpose : A highly airtight duct that allows noxious smoke to pass through.
    Specification : Made of Stainless-Steel Plate, Zinc-Coated Iron Plate (with a Zinc Coating weight of 180g/㎡ (Z18) or more), or Steel Plate with a thickness of 1.6mm or more. *Rust-proof painting is applied if necessary
  • Smoke Exhaust Damper : 3 each
    Purpose : In an emergency, it is designed to have high airtightness to only draw in smoke from the fire location.
    Function : The blades open by smoke detectors or switch operation.
    Specification : Airtightness Q < 0.032 × ΔP^(-0.5) m³/min. (per 1m length of duct opening perimeter)
  • Fire Damper : 3 each
    Purpose : After evacuation is complete, it prevents the expansion of the burning area.
    Function : The blades close by the operation of a thermal fuse.
    Specification : 280℃ Fuse is attached.
  • Smoke Exhaust Fan : 1 each
    Purpose : It extracts smoke from indoor fires to the outside.
    Function : It has a backup power source to ensure reliable operation.
    Specification :
    It can operate normally while the intake temperature reaches 280℃, and it can continue to operate normally for more than 30 minutes at an intake temperatur of 280℃.
    It can operate normally while the intake temperature reaches 280℃ to 560℃ and it can continue to operate for more than 30 minutes at an intake temperature of 560℃ without
    significant damage (such as deformation or detachment of the impeller that effectively stop the fan’s function).

Specifications:

We will introduce the products and specifications needed when implementing a Smoke Exhaust System in a hypothetical hall.

  • Duct Size : 350×350 ~ 600×600(mm)
    The air handling capacity at a wind speed of 10 m/s is 73.5 ~ 216 m³/min.

Notice :
The price will vary if the room size or duct size is changed by the design. Please request Estimation.

The Vertical Package connects the corridor ducts on each floor with the smoke exhaust fan on the rooftop to the outside. No matter where the fire occurs in the building, smoke is expelled through the Smoke Exhaust Fan. This necessary component of the Smoke Exhaust System is called the Vertical Package.

Vertical Package Products:

  • Smoke Exhaust Damper : 1 set
    Purpose : A highly airtight duct that allows noxious smoke to pass through.
    Specification : Made of Stainless-Steel Plate, Zinc-Coated Iron Plate (with a Zinc Coating weight of 180g/㎡ (Z18) or more), or Steel Plate with a thickness of 1.6 mm or more.

    Rust-proof painting is applied if necessary.

  • Smoke Exhaust Fan : 1 each
    Purpose : It extracts smoke from indoor fires to the outside.
    Function : It has a backup power source to ensure reliable operation
    Specification : It can operate normally while the intake temperature reaches 280℃, and it can continue to operate normally for more than 30 minutes at an intake temperature
    of 280℃.
    It can operate normally while the intake temperature reaches 280℃ to 560℃ and it can continue to operate for more than 30 minutes at an intake temperature
    of 560℃ without significant damage (such as deformation or detachment of the impeller that effectively stops the fan’s function).

Specifications:

  • Duct Size : 1200×1200 (mm)
    The air handling capacity at a wind speed of 10 m/s is 864 m³/min.

Notice :
The price will vary if the room size or duct size is changed by the design. Please request Estimation.

Check our e-catalogue for more details.

Effectiveness of the Smoke Exhaust Systems

Through real tests and simulations, this new technology has proven its effectiveness in protecting lives and property. It actively ensures safety by delivering reliable protection during emergencies, based on both practical applications and controlled testing.

Diagram comparing a smoke exhaust system with and without smoke evacuation, illustrating the differences in smoke removal efficiency.
Without Smoke Evacuation
Diagram comparing a smoke exhaust system with and without smoke evacuation, illustrating the differences in smoke removal efficiency.
With Smoke Evacuation