sand blasting
If you check any filter, it will say it is not approved for "sand blasting" i.e, silica dust. The only "approved" method to be used with sand is a fresh air system. It is a bit spendy for the weekend warrior. In fact, here in Ohio, I was told that sand was not for sale as blasting media anymore due to liability reasons. We use Black Beauty (trade name) for blasting and it is coal slag. It produces little dust and can be purchased in several sizes depending on the desired courseness. We still use a fresh air system and other methods to control dust.
My recommendation is do it safely or don't do it at all. It is also very inexpensive to have things sandblasted professionally. Just my .02.
Darren
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