Epidemiological studies on indoor air quality and health. Importance of Indoor Environmental Quality on Human Health toward Achievement of the SDGs.- Homes-1 Sick Building/House Syndrome.- Homes-2 Associations with Home Environment for Asthma, Rhinitis and Dermatitis.- Offices.- The indoor environment in schools, kindergartens and day care centres.- In-vehicle exposures at transportation and the health concerns.- Factors determing Indoor Air Qualities and their health impacts. Aldehydes, volatile organic compounds (VOCs), and health.- Semi-Volatile Organic Compounds (SVOCs): Phthalates and phosphorous frame retardants and health risks.- Microbial agents in the indoor environment- associations with health.- Dampness, indoor mould and health.- Particles Matter, Nitrogen dioxide and Sulfur Dioxide.- Combustion and Cookstoves.- Indoor thermal environment and cardiovascular diseases.- Provision for improving indoor environment quality. Housing performance and equipment for healthy indoor environment.- Sick building syndrome (SBS), personality, psychosocial factors and treatment.- Guidelines and Regulations for Indoor Environmental Quality.- Future directions of research on indoor environment, indoor air quality (IAQ) and health.