Dangerous goods
Dangerous Goods Class 2.2 — Non-Flammable, Non-Toxic Gas
Last updated: 6 Jul 2026Reviewed by Ms. Rubab Nizami, Lead AVSEC Faculty
In short
Dangerous-goods Class 2.2 is non-flammable, non-toxic gas. Compressed or liquefied gases that are neither flammable nor toxic, such as nitrogen, carbon dioxide and oxygen cylinders. Its hazard label is a green diamond showing a gas cylinder.
- Class
- 2.2
- Label colour
- Green
- Symbol
- Gas cylinder
- Passenger baggage
- Small gas cartridges and personal medical/diving cylinders allowed within strict limits.
What are examples of Class 2.2?
Examples include UN 1002 Air, compressed, UN 1013 Carbon dioxide, UN 1072 Oxygen, compressed. Compressed or liquefied gases that are neither flammable nor toxic, such as nitrogen, carbon dioxide and oxygen cylinders.
How is Class 2.2 handled and labelled?
The label is a green diamond with a gas cylinder — not red or white. For passengers: small gas cartridges and personal medical/diving cylinders allowed within strict limits.