Great filter
This is a great mask for working with dust, chemicals, etc.  I have seen some people out in public with it for COVID face protection I presume but I use it as a less bulky respirator when working in my dusty attic and with pvc primer and glue.  It’s lighter than the double respirators and more comfortable than the generic one time use N95 masks, so a win-win!
Rating: 5 stars