Sissi Liu, CEO & Co-Founder of Metalmark Innovations, joins the podcast as this weeks guest. Metalmark Innovations is a Harvard spinoff that developed Tatama, the first self-cleaning commercial air purifier. On this episode, Sissi talks about a whole range of IAQ issues including:Sustainability and the impact of climate changeWellness issues and the correlation of poor IAQThe connection between poor maintenance practices and IAQ issuesEnjoy!