![](http://www.ecns.cn/hd/2021/01/19/7e71351851824b1dbe9dc18af196a1c8.jpg)
A local hospital medical worker tests a transparent helmet-like oxygen mask used for severe patients infected with novel coronavirus, in Bogota, Colombia on Jan. 18, 2021. (Photo/VCG)
This helmet-like mask can be injected with oxygen to treat patients with acute respiratory distress syndrome caused by the novel coronavirus.
![](http://www.ecns.cn/hd/2021/01/19/a7c490dec9014e0084cec03b7680ae6b.jpg)
A local hospital medical worker tests a transparent helmet-like oxygen mask used for severe patients infected with novel coronavirus, in Bogota, Colombia, Jan. 18, 2021. (Photo/VCG)
This helmet-like mask can be injected with oxygen to treat patients with acute respiratory distress syndrome caused by the novel coronavirus.
![](http://www.ecns.cn/hd/2021/01/19/112eabc097544b82a82b8fa26279ef48.jpg)
A local hospital medical worker tests a transparent helmet-like oxygen mask used for severe patients infected with novel coronavirus, in Bogota, Colombia, Jan. 18, 2021. (Photo/VCG)
This helmet-like mask can be injected with oxygen to treat patients with acute respiratory distress syndrome caused by the novel coronavirus.