Feel tired with the pollution: Get a mask!
3M™ N95 Respirators. The most common and affordable mask are known that the 3M N95 masks (picture above is for the 3M 9501 model). Despite being very affordable (5 to 6 RMB a piece), the 3M N95 are always among the top performing masks for Particulate Matter (i.e. PM 2.5 Air Pollution). One of the great advantage for the 9501 model is to be ...