Precautions for airplane travel

Travel by air is fast and comfortable, in the case of physical permission, the plane is the preferred mode of transport for many people, so how much do you know about the precautions to take by air?

Can electronic cigarettes be brought on the plane?

The plane is one of the most important means of transport for modern people, because of the short time, convenient and fast features become the first choice of many people choose to travel, but the re