3M NEXCARE COMFORT MASK LIGHT 8660 (L & M) (M)

pretty much worthless. no filter size rating, just a meaningless statement about 99% bacterial filtration efficiency. bacteria can be anything from <1micron to >10micron. and filtration doesnt even matter if it cant pass a fit test and leaks air in around the sides anyway. you can look down while wearing this and see the end of your nose inside it?! even on a flatter asian face in taiwan, where it seems this 8660 mask is only sold, it does not fit properly and leaks way too much. just another in the millions upon millions of worthless face masks being scammed on people DAILY, by keeping them ignorant, and thats just in taiwan with moderate pm2.5/10 pollution AQI of 50-150. imagine china hitting 800AQI+ with billion+ people!! even the WHO recommended max of 35ug/m3 is still 99AQI and +15% mortality. nobody should be allowed to breath, let alone exercise, in that. almost none of these uncertified masks do any good for pollution like pm2.5, or cigarette smoke(0.1- 1micron). the only uses i can see for them are; preventing your sneeze from ejecting onto others; for the masses of insecure ladies, especially seen in asia, who like to hide their face from others; or in hospitals that simply use uniforms and appearance to trick people into believing they have greater legitimacy.