Before revision: The Bluetech International Clean Air Technology Award (also called Bluetech Award), is an annual award presented by the Clean Air Alliance of China (CAAC) to recognize outstanding technologies that prevent and control different forms and sources of air pollution.
After revision: The Bluetech International Clean Air Technology Award (also called Bluetech Award), is an annual award presented by the Clean Air Alliance of China (CAAC) to recognise outstanding technologies that prevent and control different forms and sources of air pollution.