[acidrain]

It really doesn't take much ventilation... a cheap range hood and some flex duct is more than enough.
Actually, with my cheap ventilation system, I never have to worry about fumes anymore, so my biggest health risk is skin or eye contact.
Chemicals splashed in the eyes, or on the skin is much more serious than the fumes (in my opinion). The skin is easily rinsed off without adverse effects, but your eyes would really suffer (being blinded would suck hard).
I wear safety glasses as soon as I walk into my shop, and when handling parts, racks, etc. around the tank, I wear a face shield as well. Elbow length rubber gloves are used any time I'm handling parts or equipment around any of the chemicals.
Think safety. Use the right ventilation and personal protection. Be mindful of the chemicals and how to use and dispose them or don't ano.