![Nitrous oxide campaigners stage mass 'laughing gas' inhalation outside Parliament | The Independent | The Independent Nitrous oxide campaigners stage mass 'laughing gas' inhalation outside Parliament | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2015/08/02/10/laughinggas-getty.jpg)
Nitrous oxide campaigners stage mass 'laughing gas' inhalation outside Parliament | The Independent | The Independent
![Criminalising nitrous oxide users is no laughing matter if it distracts from more serious drug problems Criminalising nitrous oxide users is no laughing matter if it distracts from more serious drug problems](https://images.theconversation.com/files/419570/original/file-20210906-29-1gplbw9.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip)
Criminalising nitrous oxide users is no laughing matter if it distracts from more serious drug problems
![People inhale nitrous oxide (laughing gas) from balloons in Parliament Square in a mass inhalation protest against proposed legal ban on psychoactive substances Stock Photo - Alamy People inhale nitrous oxide (laughing gas) from balloons in Parliament Square in a mass inhalation protest against proposed legal ban on psychoactive substances Stock Photo - Alamy](https://c8.alamy.com/comp/M3Y07Y/people-inhale-nitrous-oxide-laughing-gas-from-balloons-in-parliament-M3Y07Y.jpg)
People inhale nitrous oxide (laughing gas) from balloons in Parliament Square in a mass inhalation protest against proposed legal ban on psychoactive substances Stock Photo - Alamy
![Young Bristol mum's warning after inhaling laughing gas balloons leaves her in hospital learning to walk again - Bristol Live Young Bristol mum's warning after inhaling laughing gas balloons leaves her in hospital learning to walk again - Bristol Live](https://i2-prod.bristolpost.co.uk/incoming/article1887499.ece/ALTERNATES/s1200/0_SPR_BRI_110818OliviaGaleNOS_06.jpg)
Young Bristol mum's warning after inhaling laughing gas balloons leaves her in hospital learning to walk again - Bristol Live
![How dangerous is laughing gas? The history of the drug and its risks, explained | The Independent | The Independent How dangerous is laughing gas? The history of the drug and its risks, explained | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2016/05/20/10/legal-highs-protest.jpg)
How dangerous is laughing gas? The history of the drug and its risks, explained | The Independent | The Independent
![London, UK. 1st August, 2015. Campaigners inhale balloons inflated with nitrous oxide, commonly known as “laughing gas” to get high during a protest in Westminster's Parliament Square against a proposed bill that London, UK. 1st August, 2015. Campaigners inhale balloons inflated with nitrous oxide, commonly known as “laughing gas” to get high during a protest in Westminster's Parliament Square against a proposed bill that](https://c8.alamy.com/comp/EYN26A/london-uk-1st-august-2015-campaigners-inhale-balloons-inflated-with-EYN26A.jpg)