Business / Gadgets

Dutch engineer designs homemade purifier

Updated: 2014-01-21 17:12 By Liu Zheng (chinadaily.com.cn)
Comments

Dutch engineer designs homemade purifier
Woelders' 3 year-old son Ouya sits next to one of his father's air purifying machines while holding an air pollutant gauge on Jan 15, 2014 in Shanghai. [Gao Erqiang / Asianewsphoto] 

Photo
8.03K
...
...