The Asian Aerosol Conference has been held biannually since 1999 under the auspices of the Asian Aerosol Research Assembly (AARA). It is one of the premier events for Asian researchers and professionals in aerosol science and engineering. Previous conferences were held in Jeju (2017), Kanazawa (2015), Sydney (2013), Xi’an (2011), Bangkok (2009), Kaohsiung (2007), Mumbai (2005), Hong Kong (2004), Seoul (2001) and Nagoya (1999).