Dream helium balloon says density 0.1786kg / m3, ie one liter of helium mass is 0.17847 g, which is in addition to the minimum density of hydrogen gas. So when we put the helium filled foil balloons can achieve when in floating effect. Helium is a colorless, tasteless, odorless, inert gas at room temperature gaseous. Here we may not know what an inert gas, so-called inert, English means "noble", the English in the inert gas is "inert gas" or "noble gas", "inert" meaning "inert" and " noble "meaning" noble ", the reason why these elements are thus commensurate with their aloof and exclusive features related to helium under normal conditions does not produce chemical reactions with other elements and compounds, because of the" lazy "and famous, so we called the inert gas. Helium is the most difficult gas liquefaction unsealing balloon decoration, extremely inert, does not burn or support combustion in the industry may be up to 7% of the helium-containing natural gas extraction. Also by liquid air by fractional distillation from the helium-neon gas mixture in the system, because of its content in the air is extremely thin, low yields, high production costs, so now you need a lot of helium is extracted from natural gas main, as long as natural gas containing greater than 0.2% have helium extraction value. Dream Balloon think we are 90 years later, many of the young man, in the quasi-seeking girls, they often can think of a good idea, although sometimes a good idea, however, reluctant to spend money on the creative side, will come to naught. Recently in Guangdong, a young man in broad daylight in the street filled with candles, spell a big love, and lit the candles. This has led to curious passers, all of a sudden a lot of people come around Kaifeng balloons decorative effect, but the young man in order to be cheap, buy a balloon, ready to create some atmosphere to the scene, this young man enjoying the cool shade to count, this balloon in courtship ceremony, exploded, injuring two passers-by. Helium balloons wounding more recently, with hydrogen balloon is very romantic courtship, but in a romantic premise to ensure the safety of others Kaifeng balloon decorating tips, if the young man to spend more money to buy helium balloons, it will not the occurrence of such a tragedy, and we remember that, be sure to buy safe helium balloons, helium is safe. Kaifeng balloon decoration best company, Dream Balloon (certified), provided by Zhengzhou, Kaifeng balloon decoration balloon decoration Dream Limited. Dream Balloon Decoration Co., Ltd., Zhengzhou (#) is Zhengzhou, interior design leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In fantasy balloon leadership with the staff warmly welcome all inquiries negotiations to create a better future fantasy balloon.