A visitor (R) learns about products removing air pollution inside vehicles at the 16th China International Expo for Auto Electronics, Accessories, Tuning & Car Care Products (CIAACE 2013) in Beijing, capital of China, March 3, 2013. The four-day CIAACE 2013 kicked off on March 1 in Beijing. (Xinhua/Zheng Huansong)
An exhibitor on products removing air pollution inside vehicles works at the 16th China International Expo for Auto Electronics, Accessories, Tuning & Car Care Products (CIAACE 2013) in Beijing, capital of China, March 3, 2013. The four-day CIAACE 2013 kicked off on March 1 in Beijing. (Xinhua/Zheng Huansong)
An exhibitor introduces products for removing air pollution inside vehicles at the 16th China International Expo for Auto Electronics, Accessories, Tuning & Car Care Products (CIAACE 2013) in Beijing, capital of China, March 3, 2013. The four-day CIAACE 2013 kicked off on March 1 in Beijing. (Xinhua/Zheng Huansong)