| acetylene | afterdamp |
| ammonia | argon |
| arsine | biogas |
| blister gas | butadiene |
| butane | butene |
| Calor gas (trademark) | carbon dioxide |
| carbon monoxide | chlorine |
| chlorofluorocarbon (CFC) | coal gas |
| compressed natural gas (CNG) | CS gas |
| cyanogen | cyclopropane |
| diazomethane | diborane |
| ethane | ethylene |
| fluorine | formaldehyde |
| greenhouse gas | halon |
| helium | hydrogen |
| isobutane | ketene |
| krypton | laughing gas |
| lewisite | liquefied natural gas (LNG) |
| liquefied petroleum gas (LPG) | marsh gas |
| methane | mustard gas |
| natural gas | neon |
| nerve gas | nitrogen |
| nitrogen dioxide | nitrous oxide |
| oil gas | oxygen |
| ozone | phosgene |
| phosphine | producer gas |
| propane | propylene |
| radon | sarin |
| silane | soman |
| steam | sulphur dioxide |
| tabun | tail gas |
| tear gas | tetrafluoroethylene |
| town gas | vinyl chloride |
| water gas | xenon |
| Zyklon B |