It's all about HOW you use it.
I was an electronics maintenance and repair engineer for 35 years.
Used TCE and other chloro/fluorocarbons to clean circuit boards and joints after soldering them.
Sometimes brake cleaner when nothing else was available.
I always at least had a fan blowing away from me and a big vent fan going to evacuate the room.
Also used the least amount possible to do the job.
I am now pushing 70 with no known health effects from breathing this stuff.
Somewhat different from a large garage with poor ventilation and many guys spraying full cans of this all day long.
After using a patch or 2 to degrease a revolver cylinder I flush the patches so they don't evaporate in the wastebasket.
One can of brake cleaner has lasted me at least 5 years.
Risk management involves thinking about what you are doing before you do it.
I learned that early on after electrocuting myself working on TV sets when I was a "tween".
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NEMO
"Everything 44"
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