Indeed, and to put "hippy crack" into context. They're basically tiny bottles of gas that you can buy online from any cream supplier, as it's the gas used to make whipped cream.
Completely legal to buy, as it has genuine house hold uses. Though I think there is some law that governs how you're supposed to use a product, i.e. not using it recreationally...not totally sure on that one.
In the end, what's in the paper is nothing new or revealing (and probably not illegal) that one might say this is a sure way to sack someone. Unfortunately.