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A dry shipper is an insulated cryogenic flask/container that contains refrigerated liquid nitrogen absorbed into a porous lining. It is used to transport specimens.
Quantity limits: N/A
The liquid nitrogen must be completely absorbed into the container lining; there must be no free liquid.
Container must not allow the buildup of pressure.
Liquid nitrogen must not escape from the package regardless of the package orientation.
See the...
Unabsorbed liquid (desk/table lighters, antique wick lighters), absorbed liquids, butane (Zippo-type lighters, disposable lighters)
Lighters that use liquid fuel, but do not have an absorbent lining, are forbidden.
Absorbed liquid and butane lighters are limited to one lighter per passenger in carry-on or on one's person. When a carry-on bag is checked at the gate or at planeside, any lighter in the carry-on must be removed from the bag and kept with the passenger in the...
Instant/rapid ice packs that are activated by force, when used for medical/first aid purposes.
These items are allowed in carry-on or checked baggage, when carried for medical purposes such as the treatment of sporting injuries.
These products contain ammonium nitrate (a hazardous material) and are activated by force such as squeezing them or striking them. They are often used for first aid during sporting events.
Quantity limits:Included in, not...
For formaldehyde solutions containing more than 10% formaldehyde, see separate entry in the PackSafe chart for "Non-infectious biological specimens in preservative solutions."
Quantity limits: None*
Formaldehyde solutions of less than 10% are not restricted as hazardous materials. Leakproof packaging with absorbent material is still strongly encouraged.
Tip: Full-strength "Formalin" is...
Including containers and equipment with residual fuel
Gasoline and other flammable fuels are forbidden in carry-on and checked baggage.
Containers, equipment, and engine parts that contain residual fuel or fuel vapors are also forbidden in carry-on and checked baggage.
Quantity limits: No limit on devices. Two spare fuel cell cartridges may be...
Firecrackers, bottle rockets, poppers, sparklers, M-80s, fire crackers, Roman candles
All fireworks, no matter how small, are forbidden in carry-on and checked baggage.
Check out the FAA Fireworks Don't Fly poster.
Chainsaws, generators, trimmers, etc.
Though allowed in checked baggage by international (ICAO/IATA) regulations, engines using fuels, internal combustion engines, or fuel cell engines are not allowed in baggage in the U.S when containing residual fuel.
This entry is for engines using fuels, internal combustion engines, or fuel cell engines. Equipment powered by an electrical cord is not restricted as a hazardous...
Battery-powered E-cigarettes (e-cigs), vaporizers, vape pens, atomizers, electronic nicotine delivery systems
Electronic smoking devices when carried by passengers or crewmembers must be carried on one's person or in carry-on baggage. Electronic smoking devices are battery powered and have a heating element that vaporizes liquid. Passengers are required to take effective measures for preventing accidental activation of the heating element of the device when transporting the devices...
Perfumes and colognes purchased through airport and airline duty free shops
Quantity limits: N/A — Because these are typically purchased at the airport or even on the aircraft, the quantity restrictions for toiletry articles do not apply here when purchased through Duty Free and carried on your person or in carry on baggage. However, quantities are generally regulated by customs/duty rules.
For perfumes and cologne in checked baggage or not purchased through duty-...
Carbon dioxide, solid, 2.5 kg (5.5 lbs) or less, when used to pack perishables
Quantity limit: 2.5 kg (5.5 lbs) per package and per passenger.
Airline approval is required.
Packages must NOT be air tight and must allow for venting and the release of carbon dioxide gas.
When in checked baggage, the package must be marked "Dry ice" or "Carbon dioxide, solid" and marked with the net quantity of dry ice, or an indication that it is 2.5 kg (5.5 lbs) or...