we know pm2.5 particulates are so small that it could be harming us when we cant see it coming, literally. here’s perhaps an illustration of what could be going into our respiratory system if we are not protecting ourselves with N95 masks:
the ‘mickey mouse ears’ are a pair of filters from junior’s totobobo mask. the white one below is a brand new piece from the packaging. want to see more? check out a Chinese documentary below:
here’s the version with English subtitles (go straight to 5min 50sec):
[update 20/10]
some weeks ago, there’s this commentary on MyPaper touching on PM2.5 visibility issue. good to have a link to it (:
[//update]]