FR-4 Material Filtration

[gmack (Gerald Mackelburg)]

@mbellon

Yes, they have become hard to find, ironically due to COVID, since a HEPA filter will not stop the virus, which is some 10X smaller than the filter.

Some of them should do a better job than the N95’s, which reportedly are effective, though. I use an Elipse P100 (for my protection) with a disposable fabric mask on top of it (for the protection of others from its exhaust).

@mbellon

dust explosion prevention

Isn’t that a myth?

@mbellon

Nomad enclosure pushed for even lower levels, because the sound can be irritating.

How did you modify your Nomad enclosure to enable dust collection and what do you use to do it?

@mbellon

Bill is considered a bit of an extremist I’m afraid. He clearly states that he has allergy issues which would hyper sensitive him.

Can’t dust exposure cause such allergies? Doesn’t he provide a lot of useful information, a nice calculator, and numerous useful links to references?

@mbellon

So now the air is being dumped outside. It still have some NASTIES in it. One must prevent the air from easily returning to the work area and from entering other places in a residence (where people are). It makes no sense to exhaust it from your basement, only to have enter your house from the open window near the exhaust port.

Any air exhausted from the workshop needs to be replaced, so exhausting air outside may not be practical for some.

@mbellon

Few in this forum are going to run the minimum tubing necessary to achieve near perfection (4 or 5 inch tubing, very powerful blowers with very high air velocity and pressure capabilities, near optimal routing, etc.).

Yep, much simpler and less expensive options are likely adequate for most.