that is designed for eye-glass wearer like myself, so my glasses won't get fogged-up with that nostril exhaust everytime I wear one. My only way around that is to get contact lens, but thats not a good idea with regards to eye safety issue.
Hey Lee, here is another idea you could brainstorm on and come up with a design.
Howie
Hey Lee, here is another idea you could brainstorm on and come up with a design.
Howie



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