Medway Council - We've seen these small silver canisters, used to inhale Nitrous Oxide (also known as laughing gas), on the streets of Medway. If you see these unsightly canisters on the
Laughing gas to become illegal class C substance in UK | Nitrous oxide (laughing gas) | The Guardian
What are nitrous oxide canisters and what are the side effects? – The Sun | The Sun
The small silver canisters appearing on the streets of Wales and why they're so dangerous - Wales Online
Warning over supersize laughing gas cannisters in UK - BBC News - YouTube
Nitrous oxide: Laughing gas users risk spine damage, say doctors - BBC News
This is what laughing gas does to your body when you inhale it | Metro News
Liverpool's streets are littered with laughing gas canisters: the truth about nitrous oxide - Liverpool Echo
Pile of nitrous oxide canisters hi-res stock photography and images - Alamy
Laughing gas to be illegal by end of the year - Better Retailing