If you are flying for the first time, you may need to pay attention to the following points.
Check-in
Generally, check-in is done on the airline's official website one day before the flight. Check-in in advance can have a higher chance of choosing a comfortable seat that you like. Although some airports in mainland China have begun piloting the second-generation ID card direct boarding, the official CAAC APP electronic boarding pass, and QR code boarding, most airports still need to use boarding passes for boarding. Please be sure to arrive at the airport at least one hour in advance and go to the airline counter to check in. Holders of a second-generation ID card can usually use self-service equipment to save time in queuing. Generally, boarding pass exchanges will be stopped half an hour or forty minutes before departure.
luggage
Passengers in general economy class can only bring one piece of carry-on baggage. Liquids are not allowed, and they can go through the check-in procedures at the same time when they check their baggage. Baggage policies and prohibited items vary according to the specific circumstances and temporary regulations of each airline. For example, in 2016, due to multiple explosions and fire accidents of Samsung Galaxy Note7 mobile phones, in order to ensure the safety of air transportation, most airlines and airports around the world have completely banned passengers from carrying and transporting Samsung Note7 mobile phones.
tinnitus
You may experience tinnitus. You can reduce the tinnitus reaction by chewing gum or simulating chewing movements.