Can I take a vape on plane?

It can be carried with you, but it is strictly prohibited to be checked in, and it is absolutely forbidden to use or charge it on the plane.

According to the clear regulations of the International Air Transport Association (IATA) and the Civil Aviation Administration of China (CAAC), all electronic cigarette devices containing lithium batteries, including disposable electronic cigarettes and rechargeable electronic cigarette pens, must be carried as hand luggage or carried with you, and must not be placed in any checked luggage. This is mainly due to the risk of lithium batteries overheating and catching fire in the cargo hold.

Specific rules for carrying electronic cigarettes on airplanes
Item Specific regulations Source
Carrying method Only hand luggage or carry with you is allowed, and checked luggage is strictly prohibited.
Battery limit Lithium battery rated energy must not exceed 100Wh (approximately 27,000mAh). Usually, the batteries of electronic cigarettes are far below this limit.
Prevent accidental activation Devices must be completely turned off. If there is no switch, the battery must be removed or a protective cover must be used to prevent accidental activation.
Backup batteries Backup lithium batteries must be well insulated (such as sealing the electrodes with tape) to prevent short circuits.
Rules for carrying e-liquid and cartridges
Liquid limit: All bottled e-liquid and pre-filled cartridges must comply with the liquid carrying rules, that is, the capacity of a single container must not exceed 100 milliliters (3.4 ounces), and must be placed in a transparent sealed plastic bag for security check.

China's entry duty-free limit: If you plan to enter China, the customs regulations stipulate that you can carry 2 electronic cigarette devices and 6 cartridges (or disposable electronic cigarettes), with a total e-liquid capacity not exceeding 12 milliliters.

Prohibition of use on the plane
Using electronic cigarettes on the plane is strictly prohibited, including in the cabin, lavatories, etc. The aerosol produced by electronic cigarettes will also trigger the smoke alarm in the cabin, potentially causing flight delays or emergency landings, and the passengers involved will face administrative detention and other severe penalties. At the same time, charging electronic cigarettes during the flight is also prohibited.

Legal risks in the destination country
Before carrying electronic cigarettes abroad, it is necessary to check the relevant regulations of the destination country. Many countries around the world have strict bans on electronic cigarettes, such as Singapore, Thailand, Mexico, Vietnam, etc. have completely or partially banned the import and use of electronic cigarettes. Those who violate the regulations may face heavy fines or even criminal penalties.

Summary: The core principle of carrying electronic cigarettes on airplanes is "carry with you, not checked in, do not use or charge on the plane, check the regulations of the destination country before traveling."