>>2245059He is retarded, but not for that reason. Hexavalent chromium isn't a concern as long as the filter is intact and it's not leaking out, good for a few short uses even if leaking.
Additionally the guy on the left is wearing a Finnish M/61, not a MC-1. The guy in the center is wearing a CM-3 which is very similar to an MC-1 but if you really knew what you were talking about you'd see that is a non-standard filter, and in fact a NATO one, requiring a thread adapter. Don't be so quick to call others retarded before you make sure you yourself are not being retarded.
