Class 2.1 — Flammable gas

Summary

Gases that are flammable in air at 20 °C and 101.3 kPa. Includes butane lighters, camping gas canisters, aerosol cans with propellant, and refillable gas cartridges.

Packing / quantity notes

One personal-use lighter OR one packet of safety matches permitted on-person only (not in any baggage). Spare lighters and all refill fuel prohibited on passenger aircraft.

Examples

• Camping butane canisters (all sizes)
• Spare butane lighter refills
• Aerosol paint cans
• Welding-style gas cylinders

Sources

• iata.org
• faa.gov

See also

• All 9 DG classes →
• Lithium batteries in detail →
• Carry-on rules →
• Checked-bag rules →