Air pollution is a major global health threat, particularly in South Asia where it is responsible for 2 million premature deaths annually. The negative effects of air pollution on human health have been well documented, but effective strategies for mitigating these effects, especially in low and middle-income countries, are scarce. Indoor air purifiers are a promising option for reducing the impact of air pollution on health, but there is a lack of knowledge about how to effectively promote their use on a large scale. In Bangladesh, the effects of climate change, such as sea level rise, are particularly severe, leading many to move to cities in search of safety. However, these cities often have high levels of air pollution, which can be harmful, especially to vulnerable populations such as children, the elderly, and pregnant women. This highlights the interdependence of air pollution and climate change and the importance of understanding and implementing measures to protect against air pollution to both improve public health and facilitate adaptation to climate change.