[Jewelry making - Article 00267] - Re: [Orchid] Silicosis and quenching

[Todd Hawkinson]

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    In my ever present quest for safety and quality, I spoke with the
    folks at Shop Vac. The technician indicated that their drywall vac
    liner bags filtered dust particle to 0.1 micron. Airborn investment
    particles are 10 microns. If you leave the foam liner in the vac and
    add the drywall bag you now have a relatively low cost and safe vac
    system. For the 5, 6, & 7 gallon vac the part number is #90671. For
    the 10, 12, & 14 gallon unit the part number is #90672. Keeping the
    airborn particles away from the breathing chamber is very important.

    OK here's the disclaimer. Some other more knowledgeable source will
    certainly indicate this is wrong. Considering the cost this may be a
    firs step for safety for many and not break the bank. 

Stay safe,
Todd Hawkinson
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