I'd assume because our bodies have a pretty big buffer store to avoid pH effects, and most ammonia based derivatives would be concentrated in the external mucus

I'd assume because our bodies have a pretty big buffer store to avoid pH effects, and most ammonia based derivatives would be concentrated in the external mucus membranes not the lungs, at least that's most inhaled acids work, I'm not really a bases guy. I mean if you're inhaling anything with benzene rings on a regular basis, you should really wear a mask and so not do that, but inhaling 2x your daily dose of surfactant once a week is probably fine for the home cleaner. Skip the BBQ that weekend and it probably balances out.