From our offices and homes to schools, hospitals, and restaurants, the indoor spaces where we work, learn, play, eat, and heal have an outsized impact on our performance and well-being. They affect our creativity, focus, and problem-solving ability and can make us sick--jeopardizing our future and dragging down profits in the process. Joseph Allen and John Macomber make a compelling case in this urgently needed book for why every business and home owner should make certain relatively low-cost investments a top priority. Grounded in exposure and risk science and relevant to anyone newly concerned about how their surroundings impact their health, Healthy Buildings can help you evaluate the impact of small, easily controllable environmental fluctuations on your immediate well-being and long-term reproductive and lung health. Cutting through the jargon to explain complex processes in simple and compelling language, Allen and Macomber show how buildings can both expose you to and protect you from disease. With decades of practice in protecting worker health, they offer a clear way forward right now, and show us what comes next in a post-COVID world.