Bill Walsh is the Founder and President of the Board of Healthy Building Network (HBN). Since 2000 HBN has been defining the leading edge of healthy building practices that increase transparency in the building products industry, reduce human exposures to chemicals in building materials, and create market incentives for healthier innovations in manufacturing. HBN’s Pharos Project database helps the building industry identify healthier products by profiling nearly 140,000 chemicals and materials for 25 health and environmental hazards, against 78 authoritative lists of hazards. HBN Research publishes groundbreaking analysis of the contents of building products including insulation & sealants, carpeting, and recycled content supply chains. HBN’s HomeFree initiative supports affordable housing leaders nationwide who are improving human health by using less toxic building materials. Bill is a founding board member of the Health Product Declaration Collaborative which manages the Health Product Declaration (HPD), the industry leading standard specification for the accurate, reliable and consistent reporting of product contents and associated health information, for products used in the built environment.