I've read it's a healthier alternative to solvents like Shooter's Choice or Hoppe's. Some of the chemical cleaners which are good for removing copper and lead fouling stink to high hell. After a range session last week in which I cleaned 3 rifles in my garage with the doors open and a breeze blowing it could still be smelled in the house.
Then again, I've been inhaling and getting strong solvents on my hands since I was 14 or thereabouts....cars, guns, go karts, bikes, etc etc. Only had Lymphoma once back in 1998 so I guess I shouldn't worry.
