Was trying to find information on the likeliness of brain damage from difluorethane when I found this thread...
Every couple years I've given into a passing urge to do this stuff, and then a few weeks later I get really paranoid and start trying to find out whether or not I damaged my brain.
I'm going to venture that the answer is yes. But the first time I did this was probably 6 years ago, and at this point in time I still live and have a job. I graduated from college, and I'm still smarter than some people. So my bulb may have dimmed but hope is not lost.
Wish I could see specific data on damage from duster/difluoroethane, though. Most of what comes up online just brings up huffing in general.