Elsevier journal Sustainable Cities and Society.
Elsevier journal Sustainable Cities and Society.


Urbanization increases population density in cities and consequently leads to severe indoor air pollution. As a result of these trends, the issue of sustainable and healthy indoor environment has received increasing attention.

Various air filtration techniques have been adopted to optimize indoor air quality. Air filtration techniques can remove air pollutants and effectively alleviate the deterioration of indoor air quality.

This paper presents a comprehensive review on the synergistic effect of different air purification technologies, air filtration theory, materials and standards. It evaluates different air filtration technologies by considering factors such as air quality improvement, filtering performance, energy and economic behaviour, thermal comfort and acoustic impact. Current research developments in air filtration technologies along with their advantages, limitations and challenges are discussed.

This paper aims to drive the future of air filtration technology research and development in achieving sustainable and healthy building ventilation.