I decided to do a post on all of the different PM 2.5 Masks that I wear/wore in Saigon the past year. There are a large number of PM 2.5 masks available in both Saigon and Hanoi. Sadly, many are not real PM 2.5 masks nor do they meet N95 (filters out 95% of PM […]
This post first appeared on SaigonNezumi.com – Kevin Miller, Jr.'s, Blog Fro, please read the originial post: here
