About passing the seat belt at the airport.

1. You may not understand, but there are two situations.

(1) The security door gives an alarm, and then the security inspector will ask you to undergo a personal examination.

(2) The emergency door does not give an alarm and then passes directly.

2. It can be solved, but the above two situations will still occur, just depending on the sensitivity of the security door.

To sum up, it all depends on your mood. The key is whether you want the security inspector to have a full body check. If you are afraid of trouble, take it off. Is it necessary? Generally, as long as you don't hide contraband, you will pass the security check quickly and easily.

I am a security guard, and most foreigners like to untie it. I hope it works for you.