I use a $8 face shield.
Commercial fume hoods start at $5000. You guys need to learn how to build your own fume hoods. I built a 10 footer one time out of plywood, 2X4's, and 2 squirrel cage blowers from a junk yard. Plywood stands up for a long, long time around acids. And, when you shut it down, you can burn it and get any gold that was spilled on it. Finally, after 5 years, the blowers bit the dust.
One guy I knew built a small plywood box with a bench and an exhaust fan in it. For the sliding glass window, he used just that - a house window.
There's a picture in the Hoke book of a very simple fume hood. It's just a window fan with a bench in front of it.