Physical or virtual contact with greenery has positive impacts on human health. The presence of urban green spaces provides recreational opportunities, while for viewers the contact influences emotional states. For locations with limited floor space, green infrastructure such as a green roofs or vertical greenery can multiply exposure opportunities. In this case study, we sought to understand the responses of occupants to an indoor vertical greenery system (iVGS). This study explored the responses to the iVGS using a survey based on the Short-Version Revised Restoration Scale (SRRS), with responses collected onsite and online. The study examined the differences in responses between the respondents who were physically present at the iVGS (onsite) and those who viewed photographs of the iVGS online. The study also presents data on the number of passers-by before and after the iVGS was installed. Both online and onsite results revealed mostly positive responses towards the installation of the iVGS, with the onsite respondents giving higher scores than the online respondents. The restoration scores of iVGS demonstrates that it refreshes cognitive energy and brings positive impact and emotions. Responses to the SRSS provides tentative evidence that iVGS may have some restorative benefits, which is consistent with our understanding of the benefits of vertical greenery more generally. However, more research is required to confirm this.
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