They used good ventilation facilities in the building.

他们在建筑里使用了好的通风设备。

youdao

This is a room with good ventilation.

这是一间通风良好的房间。

youdao

Most importantly, we should wash our hands often. Secondly, as both coughing and sneezing may spread the infection, we should stay away from crowded areas and maintain good ventilation.

其次，由于咳嗽或打喷嚏会传播病毒，所以要尽量少往人多的地方“扎堆儿”，室内要保持通风。

youdao

"The best way of addressing public concerns about environmental tobacco smoke is through the provision of designated non-smoking and smoking areas with good ventilation, " he said.

BBC: Image of a smoke filled room