The smoke exhaust equipment set forth in Article 28, Paragraph 1 Subparagraph 1 to 4 shall be installed pursuant to the following:
1.A draft-curtained compartment shall be constructed for every 500-m2 section of each floor. This requirement shall not apply to the venues accommodating audiences in theaters, cinemas, music halls, assembly halls, and factory buildings or similar constructions, where ceiling height is over 5 meters high, and ceiling and interior walls are constructed using Class 1 flame-resistant materials.
2.A draft-curtained compartment shall be constructed for every 300-m2 section of an underground building passageway.
3.Where the horizontal distance from any position in the compartment specified in the preceding two Subparagraphs (hereafter referred as smoke compartments) to the smoke exhaust vent is less than 30 meters, and the vent is located on the ceiling or within an 80-cm area under the ceiling, except where the vent directly leads outdoors, said vent shall be connected to a smoke exhaust duct. Where the vent is positioned under the ceiling and the depth of the draft curtain is under 80 cm, the vent shall be installed within the depth of the overhanging draft curtain.
4.The smoke exhaust vents, ducts, and other parts connected to the smoke exhaust equipment exposing to smoke shall be constructed using non-combustible material.
5.Where the smoke exhaust ducts cut across a fire compartment, a fire damper shall be installed on the intersection. The construction of the intersection juncture where the duct crosses the fire compartment shall be fire resistance rated as that of the fire compartment. Where duct passes through other floor levels, the vertical duct shall be installed at the fire compartmented shaft. Where the exhaust duct has fire resistance performance, reviewed and approved by the central regulating authority, and the construction of the intersection juncture where the duct crosses the fire compartment is fire resistance rated as that of the fire compartment, the foregoing requirement shall not apply.
6.The smoke exhaust vents shall be equipped with manual stations and detector activated automatic operating devices, and be kept closed under normal circumstances, unless being activated through the aforesaid stations and devices, or the remote operating devices. The construction of the vent blades shall allow the vents remain open and unaffected by the surge of smoke current after the vents are opened. The manual station shall be installed on a wall around 80 cm to 150 cm from the floor. Where the station is located on the ceiling, an overhanging chain or a vertical handle shall be attached to the station, and be located at a height of 180 cm from the floor. Easy-to-follow operating instructions shall be posted near the station.
7.The vents shall have opening area measuring at least 2% of the area of the smoke compartment, and allow smoke to be naturally and directly exhausted outdoors. Where a lack of such natural and direct exhaust capacity exists, a smoke exhaust fan shall be installed.
8.The smoke exhaust fan shall be automatically activated upon the opening of any one of exhaust vents. The fan shall have a capacity of 120 m3/min. Where there is one smoke compartment, the capacity shall be at least 1 m3/min per square meter of the compartment area; where there are two or more smoke compartments, the capacity shall be at least 2 m3/min per square meter, based on the area of the largest compartment. Where the fan is located in an underground passageway of an underground building, total smoke exhaust capacity shall be at least 600 m3/min.
9.The capacity of the emergency power source shall be capable of operating the equipment effectively for a period of at least 30 minutes.
10.The smoke exhaust vents that directly face outdoors and are kept open at all times, shall not apply to the restrictions set forth in Subparagraphs 6 and 9.
11.When the smoke vent is actived, the air conditioning and ventilation equipment should be stopped.
The term “draft curtain” stated in the foregoing Subparagraphs refers to the overhanging wall made of incombustible materials and constructed downward from the ceiling measuring at least 50 cm, or a structure having equivalent or better capacity of restricting the movement of smoke. Where such is located in an underground passageway of an underground building, the draft curtain shall measure at least 80 cm from the ceiling

Smoke exhaust equipment located in the vestibules of special refuge stairways and the emergency elevators shall meet the following requirements:
1. Where windows directly face outdoors, the following requirements shall be met:
(1)The part of a window, which contacts the fumes during smoke exhaust, shall be made of incombustible materials.
(2)The effective opening of the window shall be located above halfway of the ceiling height.
(3)The effective opening area of the window shall be more than 2m2. Where the special refuge stairways shares a same vestibule with the emergency elevator (hereinafter referred to as “sharing duty”), the area shall be more than 3m2.
(4)The window set forth in the preceding item, which is kept closed at all times, shall be equipped with a manual station that shall be installed on a wall around 80 cm to 150 cm from the floor. Easy-to-follow operating instructions shall be posted near the station.
2. Smoke exhaust and supply air duct installation shall comply with the following requirements:
(1)The smoke exhaust vents, smoke exhaust ducts, supply air intakes, supply air ducts, and other parts of the smoke exhaust equipment exposed to direct contact with the smoke shall have an incombustible material construction.
(2)Where the smoke exhaust ducts or supply air ducts cut across a fire compartment, a fire damper shall be installed on the intersection. The construction of the intersection juncture where the duct crosses the fire compartment shall be fire resistance rated as that of the fire compartment. Where duct passes through other floor levels, the vertical duct shall be installed at the fire compartmented shaft. Where the exhaust duct has fire resistance performance, approved by the central regulating authority, and the construction of the intersection juncture where the duct crosses the fire compartment is fire resistance rated as that of the fire compartment, the foregoing requirement shall not apply.
(3)The smoke exhaust vent shall be positioned at a height at least halfway up to the ceiling or higher and be connected to the smoke exhaust ducts directly linked to the outside, and said ducts shall be connected to smoke exhaust fans. The supply air intake shall be located at a height lower than halfway up to the ceiling, and said intake shall face outdoors, and have an area of at least 1 m2 (where intakes are used for shared duty, the area shall be at least 1.5 m2); or the intakes shall be connected to the supply air ducts directly linked to the outdoor, and be connected to the supply air fans.
(4)The smoke exhaust capacity of smoke exhaust fans, and supply air capacity of supply air fans, shall be at least 4 m3/sec. ( 6 m3/sec for fans used for shared duty) and shall be automatically activated upon the opening of the smoke exhaust vent and supply air intake.
(5)The supply air intakes and smoke exhaust vents shall be equipped with manual stations prescribed in Item 4 of the preceding Subparagraph, and detector activated automatic operating devices, and be kept closed under normal circumstances, unless being activated through the aforesaid stations and devices, or the remote operating devices. The construction of the vent blades shall allow the vents to remain open and unaffected by the surge of smoke current after the vents are opened.
(6)The smoke exhaust vent, supply air intake, smoke exhaust fan, and supply air fan shall be connected to the emergency power source, and power source capacity shall be enough to run the system effectively for a period of at least 30 minutes.

Smoke Exhaust Device can be exempted at the following places:
1.Floors located below (including) the 10th floor of the building (except the basement) for non-living room used parts that comply with any of the following provisions:
(1)Ceiling and indoor walls decorated with Grade I fire-resistant materials, and separated with a fire door or window that can resist the fire for at least half an hour.
(2)The floor area is less than 100m2, and separated by smoke-prevention walls.
2.Floors located below (including) the 10th floor of the building (except the basement) for living room used comply with any of the following provisions:
(1)Every 100m2 of the floor area is zoned for fire prevention with walls, fire doors & windows, and slabs of the fire prevention structure of that floor for at least 1 hour fire resistance; ceiling and surface of indoor walls are decorated with Grade I fire-resistant materials.
(2)The floor area is less than 100m2, and ceiling and indoor wall surfaces and substrate are decorated with Grade I fire resistant materials.
3.In levels above the 11th floor in the building, basement or underground structure (except Category A basement or underground structure), every 100m2 of the floor area is zoned for fire prevention with walls, fire doors & windows, and slabs of the fire prevention structure of that floor, for at least 1 hour fire resistance; and ceiling and indoor wall surfaces and substrates are decorated with Grade I fire resistant materials.
4.Stairway, elevator well passageway, utility shaft, storage room, washing room, toilet and other similar parts.
5.Places equipped with CO2, Inert Gas, Halocarbon or dry powder fire extinguishing systems.
6.Machine factory, warehouse storing nonflammable materials and other similar buildings, where the main construction is of nonflammable materials.
7.Condominiums, school classrooms, school activity centers, gymnasiums, indoor skating yards and indoor swimming pools.
8.Other places approved by the central authority.
Fire doors and windows and other fire prevention facilities of Subparagraph 1, Item 1 of the above Paragraph shall be heat retardant for at least half an hour; those of Subparagraph 2, Item 1 and Subparagraph 3 shall be heat re-tardant for at least one hour.