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Can you bring these items on board as carry-on luggage? Actually, you might not be allowed to.

Published: 2026-11-08 👁 101 views
Last updated 2026-11-08 — FunTime

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Carry-on luggage on flights is also a science. The editor often receives questions from netizens or friends and family...

Carry-on luggage on flights is also a science. The editor often receives questions from netizens or friends and family about what can and cannot be brought on board.

(Source via Flickr by Stefan Baudy, CC License)

The editor will outline several commonly questioned items in the following sections — things people often wonder, “Can I really bring this? How should I pack it?” If you’re planning to bring something particularly “unique” on your trip abroad, such as special medications or medical supplies, be sure to check the Civil Aviation Authority’s website or call to confirm whether it's allowed.

The editor reminds you: This article mainly provides information regarding items related to “flight safety.” If you’re carrying a large quantity of cosmetics, tobacco/alcohol, currency, etc., you may need to pay customs duties.

(Source by Pixabay)

■ Any container with liquids, including sprays, gels, or lotions, must be under 100 ml to be allowed on board. In addition, all liquid containers must be placed in a transparent resealable plastic bag no larger than 1 liter (20x20 cm), and each passenger is only allowed one such bag on board.

■ Containers larger than 100 ml, such as water bottles, can be brought on board but must remain empty until after departure.

■ Containers holding sprays, gels, or liquids over 100 ml must all be placed in checked luggage.

■ For spray cans to be checked, no single item may exceed 500 ml, and the total per person must not exceed 2000 ml.

■ If you need to check aerosol cans, no single item may exceed 500 ml, and the total per person must not exceed 2000 ml.

■ If you're carrying baby food (such as milk) or liquid medication, you must declare it in advance and can bring it as carry-on only with the approval of security personnel.

■ Passengers traveling to the United States, please note: Except for powdered substances such as medicine powder, milk powder, or ashes that have been confirmed by the airline as non-hazardous, any powder equal to or greater than 350 ml must be checked in.

■ Pepper spray is not allowed in carry-on or hand luggage; also, pepper spray is not accepted as checked baggage on flights to and from Hong Kong and Macau.

■ Lighters may not be checked in at all, and may only be carried on board — but only one lighter per person is permitted.

■ Blue-flame windproof lighters are prohibited on board.

■ Attention: If you're traveling to mainland China, lighters are completely prohibited.

■ Items such as power banks or spare batteries not installed in cameras may not be checked in and must be carried in hand luggage.

■ Batteries in electronic devices such as cameras or phones are protected from excessive impact and therefore may be checked in.

■ Power banks are a type of battery-powered charger and also contain lithium batteries, so such charger products may not be checked in.

■ Only for personal use by passengers and crew.

■ It is recommended to carry them as carry-on luggage.

■ If they contain lithium metal batteries, the lithium content must not exceed 2 grams.

■ Lithium-ion batteries must not exceed 100 watt-hours.

■ Only for personal use by passengers and crew.

■ They must be individually protected to avoid short-circuiting.

■ If they contain lithium metal batteries, the lithium content must not exceed 2 grams.

■ Lithium-ion batteries must not exceed 100 watt-hours.

■ Alcohol with a concentration of less than 24% is not restricted, but there are still carry-on limits when entering customs.

■ Selfie sticks and tripods that are less than 25 cm in length when folded can be carried on board as hand luggage.

■ Items with a diameter of more than 1 cm and a length exceeding 25 cm must be checked in.

■ All cutting tools such as hunting knives, fruit knives, scissors, kitchen knives, watermelon knives, sashimi knives, machetes, sickles, utility knives, steak knives, folding knives, surgical knives, Swiss army knives, etc., are prohibited from being carried on board.

■ Plastic safety (round-tip) scissors or round-tip butter knives, such as those used in cake shops or regular restaurants, are allowed through security.

■ Nail clippers are also considered cutting tools, so they are not allowed on board and can only be checked in.

■ Electric razors are allowed on board, but disposable razors with exposed blades are not permitted.

■ Folding umbrellas can be brought on board or checked in.

■ Long umbrellas are classified as potentially dangerous items and therefore cannot be taken on board.

■ Sports equipment such as baseball bats, golf clubs, and billiard cues are not allowed on board. If you need to bring them, please purchase additional large luggage check-in services.

■ Disposable heat packs: These single-use heating products made of iron powder and salt can generally be packed in checked luggage in small, unopened quantities. However, opened or even unopened heat packs in carry-on or personal bags are often subject to inspection, and whether they can be taken on board depends on the security regulations of each country.

■ Rechargeable heat packs: As they contain lithium batteries, they must be placed in carry-on or personal luggage and are not allowed in checked baggage.

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■ Electronic devices such as laptops and tablets can be placed in checked luggage after being turned off, but they may be more prone to impact during transit, so it is recommended to carry them on board.

Dangerous goods are prohibited in both carry-on and checked luggage. Some everyday items are often unknowingly packed in hand luggage by travelers, such as scissors in pencil cases — pay special attention to these small items!

(source by Pixabay)

1. Flammable items: such as fuel oils like gasoline and diesel, matches, paint, lighters, etc.

2. Highly compressed cans: such as gas canisters, diving oxygen tanks, spray paint, insecticides, etc.

3. Corrosive substances: such as strong acids, strong alkalis, mercury, lead-acid batteries, etc.

4. Explosives: all types of firearms, ammunition, fireworks, firecrackers, flares, etc.

5. Poisons and infectious materials: such as insecticides, herbicides, live filtered viruses, etc.

6. Radioactive materials: such as uranium, iodine, cesium, cobalt, and other substances that emit ionizing radiation, including nuclear isotopes.

7. Strong oxidizers: such as bleach, industrial hydrogen peroxide, etc.

8. Other prohibited items: such as magnetized objects (magnets) and items that are offensive or irritating (such as swords, sticks, bows and arrows, self-defense sprays, etc.).

Editor’s note: Dangerous items also include briefcases or small suitcases equipped with anti-theft devices.

Recommended reading:

A: Attention sports enthusiasts Up!Although sports equipment such as baseball bats, golf clubs, and fishing rods, which can be turned into weapons, are not allowed on board as per regulations; however, items like badminton rackets are allowed in carry-on luggage if they comply with airline rules!

A: Some low-cost airlines explicitly prohibit bringing outside food on board, so it is recommended to purchase meals provided by the airline. Currently, Scoot and Tigerair Taiwan do not allow outside food according to their official websites. Airlines like Peach Aviation, Vanilla Air, Air Busan, AirAsia, and Jetstar do not have explicit rules, but it is polite not to consume overly strong-smelling or heavily flavored food.

Violating aviation regulations not only ruins your travel experience but may also damage your credibility at entry and exit points and could even pose risks to other passengers and countries. Don’t take chances when packing or going through customs!

[FunTime Travel Recommendation]Authorized reprint. Original source: [Did You Know These Things Can’t Be Brought on a Plane?!]

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