Nitrous oxide

Possession of laughing gas to be criminal offence

Rising number of drivers inhaling laughing gas

'Nuisance' laughing gas seller banned from city

Laughing gas should not be banned, review says

Council urged to engage with hydrogen pilot

Laughing gas users risk spine damage, say doctors

Hospital recorded 50 times birth gas safety limit

Maternity unit stops gas and air over safety fears

Laughing gas ban to stop anti-social behaviour

Gas and air suspended over nitrous oxide levels

NHS staff exposed to 30 times legal gas limit

Safety of hydrogen home energy pilot questioned

Charity's events warn of laughing gas dangers

Gas and air pain relief reinstated at hospital

Gas and air pain relief suspended at hospital

MP wants stricter nitrous oxide controls

Netherlands to ban laughing gas from January

Hospital investigates nitrous oxide level breach

Laughing-gas makers call for retail sales ban

'I showed son's ashes to people using laughing gas'

'A 20-second high isn't worth losing your life over'

Man with 25,000 laughing gas canisters jailed

NHS worker struck off for inhaling laughing gas