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1. First, find the balloon seal (the seal is made up of two layers of plastic paper), and insert the air nozzle between the two layers of paper.

2. Slowly insert the air nozzle into the sealing area for 2~3cm, and press the plastic film tightly around the air nozzle with your fingers to prevent air leakage; then slowly inflate the air.

3. When the balloon is nearly fully inflated (the balloon is slightly swollen), reduce the amount of air being pumped into it and slow down the rate of inflation.

4.PS: Do not overfill the gas, especially when using it in high-temperature environments. After filling, simply press the seal lightly with your fingers.

1. Before releasing the air, please prepare a straw about 20cm long, with a slightly larger diameter (for easier air release)/medium hardness;

2. Insert the straw slowly into the seal until you can feel gas coming out, then gently squeeze the sphere to discharge the gas.

 Aluminum film balloons (also known as aluminum foil balloons, hydrogen balloons, or helium balloons in China, which are inaccurate terms). It is precisely because people call aluminum foil balloons due to different understandings of the material of aluminum film balloons, but the material used in the balloons here should still be called aluminum film more accurately; and the reason why some people call it hydrogen balloons or helium balloons is simply because the gas is different, when inflated with aluminum film balloons in China, due to cost considerations, hydrogen is usually used for inflation, so most people in China usually call it hydrogen balloons, but the disadvantage of using hydrogen is quite dangerous, and there is a detailed introduction in "Should we inflate balloons with helium or hydrogen?" While overseas, helium is usually used to inflate aluminum film balloons, so the content on the inquiry form in general overseas is written as "helium balloon".