The number of evacuation doors in rooms in public buildings shall be determined by calculation and shall not be less than 2. Except for the rooms at the end of the aisle in nurseries, kindergartens, buildings for the elderly, medical buildings, and teaching buildings, an fire evacuation door can be installed in rooms meeting one of the following conditions:
1) For rooms located between two safety exits or on both sides of a bag-shaped walkway, the building area of nurseries, kindergartens, and care facilities for the elderly shall not exceed 50 square meters; for medical buildings and teaching buildings, the building area shall not exceed 75 square meters; for others For buildings or places, the building area shall not exceed 120 square meters.
2) For the room at the end of the aisle, the building area is less than 50 square meters and the clear width of the evacuation door is not less than 0.90m, or the linear distance from any point in the room to the evacuation door is not more than 15m, the building area is not more than 200 square meters and the evacuation door is The clear width is not less than 1.40m.
3) Halls, rooms or rooms located in the singing and dancing entertainment and entertainment venues, with a construction area of no more than 50 square meters and no more than 15 people frequently staying.
4) In addition to relevant regulations, an underground or semi-underground equipment room with a building area of no more than 200 square meters, and other underground or semi-underground rooms with a building area of no more than 50 square meters and no more than 15 people frequently staying may be provided with an evacuation door.