A survey of public perceptions of air pollution and it's related topics in the Greater KL region of Malaysia during a non-haze period. Questions used are both self-created and adapted from Oltra and Sala (2018). The survey instrument is in English and composed of 3 main parts: (1) air pollution perception at home and work/school place and Air Pollution Index (API) engagement (2) knowledge of health impacts and risk perception and (3) behavioural responses towards air pollution.