--- In
Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
>
> Steve <steve65@...> writes:
> > How much of the fumes can humans tolerate? Are the fumes harmful?
>
> Chlorine gas is toxic. I don't know the LD50 but I don't want to find
> out the hard way either. I've got a fume hood and vent, just a simple
> bathroom vent fan and some flexible aluminum foil ductwork.
>
> Copper salts are toxic if ingested, so don't drink your etchant either ;-)
>
Thanks for the comments.
Can I get some ideas on how to build this hood? Using a bathroom vent fan sounds like a good idea but aren't the fan blades made of metal? And wouldnât that corrode in a short period of time with this chemical mixture?