Personally, I would call it a 'nitrous oxide canister' and not by it's use.
E.g.
https://www.nlwa.gov.uk/reducereuserecycle/recycle/whatcanwerecycle/laughing-gas-canisters
On Sun, 29 Jan 2023, 15:09 Lukas Toggenburger via Tagging, <
tagging@openstreetmap.org> wrote:
> Dear list
>
> I am looking
Dear list
I am looking for a tag to mark places where whipper chargers / cream blower
capsules can be recycled, i.e. a tag `recycling:X=yes`, according to the
existing https://wiki.openstreetmap.org/wiki/Tag:amenity%3Drecycling scheme.
I am referring to these things:
-