Yeah. I do try to not breathe the stuff but I`m not all that paranoid about it (gee, maybe I should be

).
So far zero issues with running IUDJ through it, and I don`t empty/clean it between uses either. It might sit in the Tornador for months as it doesn`t use it very quickly.
Gotta say I`m simply *loving* it for the jambs/engine compartments, but remember that mine get done to a real Autopian standard first (then I just maintain them forever, can`t even recall the last time I had to really redo in a huge way). I don`t even have to switch the Tornador to "air only" 100% of the time (but maybe people oughta) as it doesn`t leave too much IUDJ behind and what it does leave flashes off cleanly *most* of the time (but YMMV).
Took me a while to get myself dialed in, and it doesn`t really impress me as a "small area, close range pressure washer" the way I`d hoped, so I still clean any real dirt off with BHBs first, but still...love it and recommend it *as long as people put in the time/thought/effort to get their technique dialed-in*. In that regard it`s kinda like my foamgun/BHB stuff, not something that`ll work great the first however-many times you try it, but worth it in the end IMO.