The fall 2023 issue of Passive House Accelerator explores how the benefits of Passive House construction can turn buildings into islands of tranquility. Case studies in this issue include an affordable apartment building in the Bronx, a warehouse in the Hudson Valley, a prefabricated classroom on a Spanish beach, and the world's first Passive House certified hospital in Germany. This issue examines how the benefits of Passive House construction—particularly improved indoor air quality and protection from external noise pollution—can positively affect occupant health in addition to decarbonizing the built environment. This issue also highlights how the principles of Passive House design and construction can be applied to any building typology and in any climate. We hope you enjoy it!