With the arrival of the SARS-CoV-2 coronavirus, the scientific academia, as well as policymakers, are striving to conceive solutions as an attempt to contain the spreading of contagion. Among the adopted measures, severe lockdown restrictions were issued to avoid the diffusion of the virus in an uncontrolled way through public spaces. It can be deduced from recent literature that the primary route of transmission is via aerosols, produced mainly in poorly ventilated interior areas where infected people spend a lot of time with other people.

Concerning contagion rates, accumulated incidence or number of hospitalizations due to COVID-19, Spain, and Italy have reached very high levels. In this framework, a regression analysis to assess the feasibility of the indoor ventilation measures established in Spain and Italy, with respect to the European framework, is here presented. To this aim, ten cases of housing typology were and analyzed. The results show that the measures established in the applicable regulations to prevent and control the risk of contagion by aerosols are not adequate to guarantee a healthy environment indoors. The current Italian guidelines are more restrictive than in Spain, yet the ventilation levels are still insufficient in times of pandemic.

随着 SARS-CoV-2 冠状病毒的到来，科学界和政策制定者正在努力构思解决方案，以试图遏制传染病的蔓延。在采取的措施中，发布了严格的封锁限制，以避免病毒以不受控制的方式通过公共场所传播。从最近的文献中可以推断出主要的传播途径是通过气溶胶，主要产生于通风不良的内部区域，在那里感染者与其他人共度很多时间。

关于传染率、因 COVID-19 导致的累计发病率或住院人数，西班牙和意大利已达到非常高的水平。在此框架中，此处介绍了一种回归分析，以评估西班牙和意大利建立的室内通风措施相对于欧洲框架的可行性。为此，我们对十个住房类型案例进行了分析。结果表明，适用法规中制定的预防和控制气溶胶传染风险的措施不足以保证室内健康环境。意大利目前的指导方针比西班牙更严格，但在大流行时期通风水平仍然不足。