中国爆炸式的发展和臭名昭著的空气质量为改善室内空气质量提供了巨大的机会。在未来十年里，中国预计将占世界建筑总量的38%，利用这一点，许多公司现在都在为污染严重的城市进行设计。在中国政府监管的74个城市中，只有三个达到了官方最低标准，这已经超过了国际标准。世界各地的城市都经历了同样的融合，尽管程度往往较小。本文介绍了两个案例研究，说明如何成功地向建筑业主证明额外的空气改善成本。从这些系统的运行中吸取的经验教训有助于建立改善室内空气质量的示范策略的知识库。 中国吴江的一座多用途大楼提供了可操作的窗户，在室外条件允许的情况下为42层的中庭自然通风。尽管室外空气质量差可能会导致窗户关闭，但历史空气质量数据表明情况并非如此。现场测量的室外空气质量将作为确定何时可以使用自然通风的众多控制参数之一。证明自然通风系统的价值有助于保证额外的监测和控制成本。中国广州的一座办公楼也是为了解决室外空气质量问题而设计的。采用内部通风的双层墙有助于减少渗透，改善室内空气质量，同时减少围护结构负荷，提高舒适度。 展示了双层墙的协同作用，不仅改善了空气质量，还提高了建筑性能，这有助于它的使用。在这两个案例研究中，增强的室内空气质量措施都是由每个客户独特制定的价值观和目标证明的。将改善室内空气质量的措施纳入一个迎合特定客户的整体设计，迫使决策者批准增加成本。引用:ASHRAE论文:2015年ASHRAE年会，佐治亚州亚特兰大

China's confluence of exploding development and notorious air quality offers tremendous opportunity to improve indoor air quality. Capitalizing on the expected 38% of world construction in China over the next ten years, many firms now design for highly polluted cities. Only three of 74 cities monitored by the Chinese government met official minimum standards, which already exceed international standards. Cities around the world experience the same confluence, though often to a lesser extent. This paper presents two case studies that illustrate how additional air-improving costs have been successfully justified to building owners. Lessons learned from the operation of these systems contribute to the knowledgebase of demonstrated strategies that improve indoor air quality. A mixed-use tower in Wujiang, China provides operable windows to naturally ventilate a forty-two-story atrium when outdoor conditions allow. Although poor outdoor air quality may be expected to keep the windows closed, historical air quality data suggests otherwise. On-site measured outdoor air quality will be included as one of many control parameters that determine when natural ventilation can be used. Demonstrating the value of a natural ventilation system helped warrant additional monitoring and controls costs. An office tower in Guangzhou, China is similarly designed to address outdoor air quality. Its use of an internally ventilated double wall helps reduces infiltration to improve indoor air quality, while simultaneously reducing envelope loads and increasing comfort. Demonstrating the synergy offered by the double wall to not only improve air quality, but also enhance building performance contributed to its use. In both case studies, enhanced indoor air quality measures were justified by values and goals uniquely established by each client. Incorporating enhanced indoor air quality measures into a holistic design that caters to a particular client has compelled decision makers to approve increased costs.