Yes According to Beijing local treasure's inquiry, restaurants are not allowed to open without special flue. Shops without flues are not allowed to do catering. There must be business equipment or facilities suitable for the variety and quantity of food it produces and supplies, and corresponding equipment or facilities such as disinfection, changing clothes, washing hands, lighting, ventilation, refrigeration, dust prevention, fly prevention, rodent prevention, insect prevention, washing, wastewater treatment and garbage and waste storage.