Acid fog fitarwa gas da iska bututun gabatar da tsabtace hasumiya, bayan cikawa layers, fitarwa gas da sodium hydroxide sha ruwa don biyu matakai cikakken tuntuɓar sha da kuma amsa, da acid fog fitarwa gas bayan tsabtace, sa'an nan kuma bayan dehydration daga fog allon dehydration daga fan fitarwa a cikin yanayi. Mai sha ya shafa a saman hasumiyar bayan matsin lamba ta hanyar famfo, kuma a ƙarshe ya koma don sake zagayowar hasumiyar. Bayan tsarkakewa da acid haze fitarwa gas ya kai kasa fitarwa ka'idodin lardin Guangdong, kasa da kasa fitarwa ka'idodin.