Crowded places refer to public gathering places, outpatient and ward buildings of hospitals, teaching buildings, libraries, canteens and dormitories of schools, reading rooms of nursing homes, welfare homes, nurseries, kindergartens, public libraries, exhibition halls of public exhibition halls and museums, production and processing workshops and staff dormitories of labor-intensive enterprises, and places for tourism and religious activities. Among them, public gathering places refer to hotels, restaurants, shopping malls, bazaars, waiting rooms of passenger stations, waiting rooms of passenger terminals, civil airport terminals, stadiums, auditoriums and public entertainment places.