Skip to content
Can I Carry It? — verified carry-on guide

Can You Bring Co2 Cartridges on a Plane?

Category: Gear & Miscellaneous

Direct Answer (2026 Official Rules)
Cabin: ⚠ LIMITED Hold: ⚠ LIMITED

Yes, with limits — you can bring co2 cartridges in carry-on bags provided you follow security limits. Must be under 50 ml cylinder volume.

Verified against published 2026 TSA (United States) & CATSA (Canada) security screening databases.

On this page · 9 sections

⚖️ Why This Rule Exists: Cabin Security, Blade Restrictions & Sterile Area Integrity

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Decision Threshold: Permitted in carry-on if non-sharp or under legal length thresholds.

Rules by security authority

United States — TSA

Cabin:

LIMITED

Allowed ONLY for life vests (up to 2 fitted + 2 spares) with airline approval.

Hold:

LIMITED

Allowed for life vests with airline approval.

Rule conditions: Must be under 50 ml cylinder volumeAirline approval required under FAA/ICAO rulesLoose unapproved CO2 cartridges for airsoft/soda are banned

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

🔍 Security Checkpoint & X-Ray Screening Advice

Place large metal tools in the screening bin alongside electronics if requested by screening staff.

Learn more about scanner differences and traveler rights in our Airport Security Screening Guide →

⚠️ Common Traveler Mistake to Avoid

The Mistake: Assuming scissors or tools of any size are allowed without checking blade length from the pivot point.

How to Avoid It: Measure blade length: must be under 4 inches (10 cm in the US) or under 6 cm from pivot (in Canada).

How to Pack CO2 Cartridges for a Flight

Confirm with your airline in advance if traveling with an inflatable life jacket. Always verify specific airline carry-on size limits and pack delicate items securely to prevent baggage damage during transit.

CO2 Cartridges on a plane — FAQs

Can you bring Co2 Cartridges in a carry-on?

Allowed ONLY for life vests (up to 2 fitted + 2 spares) with airline approval.

Can you pack Co2 Cartridges in checked luggage?

Allowed for life vests with airline approval.

Why are there rules for co2 cartridges on a plane?

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Can I bring co2 cartridges on an airplane?

Allowed ONLY for life vests (up to 2 fitted + 2 spares) with airline approval. In checked bags: Allowed for life vests with airline approval.

Last verified:

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →