Wow, I asked the right people.

Thanks

JohnF


On Tue, 19 Jul 2005 14:15:40 GMT, JohnF
wrote:

I looked into the "smoke tubes" from Grainger but they're $100.00 for
a kit. I know there is something cheap and relatively safe (can't kill
anyone except management) I could use to figure out air flow in the
shop.

Ideas?

JohnF