After the hydrogen balloon or basketball filled with gas enters the engine room or cargo hold, it is very likely to explode due to the change of air pressure during flight, which will affect the personal and property safety of passengers and even the flight safety. For the safety of themselves and other passengers, passengers can deflate the inflatable ball and take the plane. Liquid articles should be stored in a single container with a volume not exceeding 100 ml.

The weight limit of the articles carried by each passenger on the plane is 5 kg. Passengers with first-class tickets can carry two items each, while passengers with business or economy tickets can only carry one item with them. The volume of each personal belongings shall not exceed 20×40×55 cm.

Flight precautions.

1. Please note that check-in stops 30 minutes before the flight takes off, and luggage over 20 inches needs to be checked (and the checked baggage allowance is limited, and you will have to pay if it exceeds the limit).

2. Note that electronic products with lithium batteries such as mobile phones, tablets and charging treasures (not exceeding 20,000 mA) need to be taken out separately for security inspection. Liquids such as water, yogurt, alcohol, etc. cannot pass the security check, and cosmetics below 100 ml can be taken on board.

3. Bring your ID card and other relevant documents (remember to bring your passport if you go abroad) and arrive at the airport in advance. Domestic flights arrive at the airport one hour to one and a half hours in advance, and international flights arrive at the airport two hours in advance (a little earlier on holidays). When you arrive at the airport, you will check in. If you don't need to check your luggage, you can take your ID card to the self-service ticket machine to print your boarding pass. If you need to check in, you can go directly to the check-in counter to get your boarding pass and check in.