2023-03-02
2. Latex balloons can be filled not only with air, but also with other gases to make floating air balloons, so helium and hydrogen can also be filled. However, attention should be paid to the gas used in floating air, because hydrogen is a dangerous gas, relatively flammable and explosive, while helium is a stable inert gas. Therefore, try to choose helium when using, so that it is relatively safe. In addition, if hydrogen cannot be used, it is necessary to keep away from high temperature and away from fire sources, especially lighter must be used away from hydrogen balloon.