I work in the chemical industry. The vessels I am talking about are large chemical storage tanks. We also purge the lines to and from the tanks so that we can work on them or cut on them. I have seen guys dead from nitrogen intake, I don't want any part of it, none, zero, nadda! I will stick with air, been riding on air for 40 years, never had an issue or one bad enough to go seek out nitrogen or to pay pay for it.
I thought I had posted about nitrogen on this thread but I guess not..I've been running nitrogen in my car and truck for 5 years or so now..I have realized less wear and a smoother ride - one of my rides is a lifted Jeep with big a$$ tires and there's a big difference, believe it or not..I've put nitrogen in my Fat Boy trike tires..I'm sold on it..I know others think its a gimmick for road use - I've heard all that, but I've found big differences in long term tire wear..