I have 3 big problems with the…
I have 3 big problems with the CastleGrade G-Series mask: 1. I may be wrong, but the mask does not appear to be N95 certified. The castlegrade website only says they are *registered* with the FDA, but the mask itself doesn't have any of the expected markings, such as TC number (see [1] for what to look for). Searching the CDC database of officially registered n95 respirators shows no results for castlegrade [2]. However, they appear to have unofficially exceeded NIOSH requirements in a lab test: www.instagram .com/p/CFm18wnpWt8 2. The largest size is still too small for my normal-sized face to create any remotely effective seal (I have a normal-sized face - 6' 150-160lb male). 3. No returns. The reality is there aren't many good mask options (most n95s rightly being redirected to healthcare workers), but I would recommend only buying this if you have a pretty small face. Otherwise it's almost useless. [1] Search "counterfit respirators Misrepresentation of NIOSH-Approval cdc", click the first result [2] Go to wwwn. cdc. gov/ niosh-cel (the wwwn is correct). Click "Quick searches" tab -> "Manufacturer or brand" -> type "castlegrade". No results.