Pull the balloon up a few times first, which will make it soft. When blowing, block the front section of the balloon with your hand to avoid blowing up first, because the tail of the balloon is thicker than the front end of the balloon. If the front of the balloon bursts first, you have to let it go and explode again, otherwise it will explode easily. Or insert the barrel of a ballpoint pen into a balloon and blow it. It is easier to stretch and deform the balloon several times before blowing, or to scald the balloon with hot water first.

A balloon is a sealed bag filled with air or other gases. Balloons can be used not only as toys, but also as vehicles. There are many kinds of balloons. Now we mainly introduce balloons made of natural latex, which can be used as decorations and arches for the opening ceremony, printed with their own advertising patterns as publicity, printed with photos of married couples as congratulations, decorative balls, new people floats and so on. Now the balloon has become a beautiful landscape, more and more people's favor! . Balloons can be used not only as toys and decorations, but also as vehicles. If the balloon is big enough, the gas inside is lighter than the air of the same volume, and the buoyancy generated exceeds the weight of the airbag and attached objects (such as hanging baskets and hot air balloons), the balloon can rise.

It is suggested to use high-quality balloons that meet the requirements of environmental protection and can be decomposed by microorganisms as modeling balloons. First, it is safe and not easy to break, and second, it can be used for complex knitting with high difficulty. In addition, when balloons are used in modeling design, there is no safety problem because air is used. However, if you use a round balloon to float short, please be sure to use safe helium to fill it, and hydrogen is forbidden. And don't let children put balloons in their mouths, which may be in danger of suffocation. In addition, although there is no domestic legislation prohibiting the release of helium balloons in large quantities during festivals, please observe the following principles:

1) Don't release the floating aluminum foil balloon (aluminum foil is not easy to decompose, aluminum foil will be in danger of short circuit when touching high-voltage lines, and aluminum foil will cause trouble in flight.

2) Don't tie a rubber balloon filled with helium with metal wire, and the same is true.

3) Rubber balloons filled with helium, one ball should be tied with a heavy object, and a large number of balloons should not be tied with the same heavy object. Because once the balloon flies away, it will not spread out, and it is easy to hang on the wire, or the wire will wrap around the animal after falling, causing harm.

Therefore, balloons are very safe as long as the above precautions are observed.