The central air conditioning ventilation system plays an important role in the air circulation of buildings such as centralized isolation medical observation points and general public buildings. In order to meet the requirements of COVID-19 epidemic prevention and control, Beijing Preventive Medicine Association organized Beijing CDC and other professional institutes to write up the group standard entitled "Technical specification for health risk investigation of central air conditioning ventilation system during the COVID-19 epidemic (T/BPMA 0006-2020)" . According to the particularity of central air conditioning ventilation system risk control during the outbreak of similar respiratory infectious diseases, based on current laws and regulations and the principle of scientific, practical, consistency and normative, 8 key points of risk investigations were summarized, which were the location of fresh air outlet, air conditioning mode, air return mode, air system, air distribution, fresh air volume, exhaust and air conditioner components. The contents, process, method, data analysis and conclusion of the investigation implementation were also defined and unified. It could standardize and guide institutions such as disease control and health supervision to carry out relevant risk managements, and provided solutions and technical supports for such major public health emergencies in city operations.
集中空调通风系统对集中隔离医学观察点和一般楼宇等建筑物内部的空气流通起着重要作用。为满足北京市应对新型冠状病毒肺炎疫情联防联控、平战结合的工作要求，北京预防医学会组织北京市CDC等多单位撰写了《新型冠状病毒肺炎疫情期间集中空调通风系统风险调查实施技术规范（T/BPMA 0006-2020）》团体标准，针对类似呼吸道传染病暴发流行期间集中空调风险防控特殊性，从传染病预防控制角度，以现行法律法规为基础，以"科学性、实用性、统一性、规范性"为原则，梳理归纳了集中隔离医学观察点和一般楼宇集中空调通风系统新风口位置、空调方式、空调回风方式、空调风系统、气流组织、新风量、排风和空调部件8项风险调查要点，并对调查实施内容、流程、方法、资料分析和结论建议等提出明确定义和统一要求。规范和指导疾病控制和卫生监督等机构开展相关风险防控工作，为城市管理中的此类重大突发公共卫生事件提供解决思路和标准支持。.
Keywords: COVID-19; Central air conditioning ventilation system; Group standard; Health risk investigation; Technical specification.