I must say I agree.I thought the fit was lacking, and really did not
feel as well protected as when using, say, a 3M 8515. Of course, I
have an “average” face size, so masks fit me fine. They also happen
to work against silica and soldering fumes, but I am not sure in what
concentration. I have no idea what the better breather protects
against, other than the attentions of the opposite sex.
The real trick, whether soldering or grinding or polishing, is proper
ventilation/suction, and regular replacement of filter bags, etc.
We use positive suction at the benches - this helps collect refining,
keeps dust out of the operators face, and keeps the bench very clean.
If this is not an option, we work in a “box”, a plexi-glass
container, that is relatively well sealed.
For polishing at the motor, we have an enclosed system with tertiary
filter, and for soldering/casting, we have a very powerful exhaust
I imagine that instead of nothing, better breathers would be ok.but
I’d personally use a dust mask for what I fell is more comprehensive
protection, and for the best protection, a dust mask and positive
suction is great.
Chris Ploof Studio