The COVID-19 pandemic has accelerated the trend of ‘working from home’ (WFH). It’s becoming more common for various reasons, such as reducing office rent costs, saving time on commuting, more flexible scheduling, work-life balance, and of course minimising infectious disease transmission. Despite the growing trend – and its expected contintuation – there has been no research into workplace health and comfort under the WFH scenario. Indeed, current knowledge of the so-called indoor ‘comfort zone’ has evolved in the context of commercial office buildings.