Slapperbar
Retired Navy NDT Examiner
particulate = purple hepa
Probably what is needed.
Probably what is needed.
CK5
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Welding Galvanized
- Thread starter stockk5
- Start date
Pookster
1/2 ton status
Hepa is 99.9% of .3 micron particles.
n95 masks are 95% of .3 micron particles. Question is, how big is the zinc dust?
