delta_9
Bluelighter
ISI is just a brand name and you can just look at the box and tell. Medical nitrous is almost always from tanks so that how you can tell. As for auto grade nitrous, it has sulfuric compounds in it to prevent inhalation. I've never done any but a friend of mine said you can taste a difference in auto nitrous. If anyone's done auto nitrous by mistake (or on purpose), does it really taste different? And is this a good way to tell whether or not your inhaling "good" nitrous?pullstring said:how can u tell if its med or isi
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