Are there studies on whether it sheds dust and under what conditions? Also, where are people even still getting cobalt chloride gel? Do they still make it? I s

Are there studies on whether it sheds dust and under what conditions? Also, where are people even still getting cobalt chloride gel? Do they still make it? I sure wouldn't buy any. I wouldn't even buy the orange to green stuff by choice these days for anything DIY, it's still too toxic when mechanical hygrometers are cheap.