汽车停车场可以部分开放或完全封闭。部分开放式车库通常位于地面以上，侧面开放，一般不需要机械通风。然而，全封闭停车场通常位于地下，需要机械通风系统。封闭式停车场的空气质量确实存在一些问题。最严重的是停车场内汽车排放的高浓度一氧化碳。 与封闭式车库相关的其他问题包括油烟和汽油烟雾，以及其他污染物，如氮氧化物和柴油发动机产生的烟雾。空气污染物以一种复杂的方式分散在整个外壳中，这取决于几个因素，包括:加热、通风和空调（HVAC）系统的影响；外壳的空气泄漏特性；通过过滤或一代一代地去除污染物； 污染物的化学反应、放射性化学衰变、沉淀或吸附。为了使室内空气质量分析更加复杂，上述所有因素可能同时发生。明确了解各种因素如何影响室内空气质量，对于制定一套封闭式停车设施通风设计指南非常重要。根据文献综述，发现其他国家封闭式停车场的通风要求不同于ASHRAE标准62的规定- 1989年在美国。

Automobile parking garages can be partially open or fully enclosed. Partially open garages are typically above-grade with open sides and do not need generally mechanical ventilation. However, fully enclosed parking garages are usually underground and require mechanical ventilation systems. Indeed, in absence of ventilation, enclosed parking facilities present several indoor air quality problems. The most serious is the emission of high levels of carbon monoxide by cars within the parking garages. Other concerns related to enclosed garages are the presence of oil and gasoline fumes, and other contaminants such as oxides of nitrogen and smoke haze from diesel engines.Airborne contaminants disperse throughout enclosures in a complex manner that depends on several factors including:the effect of the heating, ventilating, and air-conditioning (HVAC) systems;the air leakage characteristics of the enclosure;the removal, by filtration or contribution by generation, of contaminants;the chemical reaction, radio-chemical decay, settling, or sorption of contaminants.To further complicate the analysis of the indoor air quality in enclosures, all of the factors listed above can occur simultaneously. A clear understanding of how the various factors influence indoor air quality is important to develop a set of design guidelines for ventilating enclosed parking facilities.Based on the literature review, it was found that the ventilation requirements for enclosed parking garages in other countries differ from those sets by the ASHRAE standard 62-1989 in the US.