What is PM2.5 and what are the air pollutants? #pm2.5#air pollutants

What is PM2.5 and what are the air pollutants? #pm2.5#airpollutants

评论

发表评论

此博客中的热门博文

What is the hydrogen water benefits?

图片
Nowaday. more and more scientist are study Hydrogen water. and they found that hydrogen itself is the best antioxidant, according to a study by Japanese professor taida.The hydrogen-rich water is a combination of high hydrogen, negative potential, weak alkaline and small molecule.Hydrogen-rich water can easily enter the cell channel, promote metabolism, eliminate malignant reactive oxygen free radicals, promote cell detoxification, increase the hydration of cells, and enhance the immunity of human body.  The healthiest beverage you can drink is water. It’s free of sugar, salt and chemicals that can harm and age cells, as long as it’s filtered properly. If H2O is so good for you, then boosting the hydrogen content should make it even healthier—right? That’s what more and more beverage companies are banking on. So-called “hydrogen water“—water into which hydrogen gas is dissolved—is increasingly popular. A handful of companies are now selling $3 bottles of the stuff, while oth...
阅读全文

How air purifier development?

图片
In 1823, John and Charles Dean invented a new type of smoke protection device that would allow firefighters to avoid smoke during fire extinguishing. In 1854, a man named Johns Tennessee made new progress on the basis of the invention of his predecessors: Through several attempts, he learned that adding charcoal to an air filter can filter out harmful and toxic gases from the air. . During World War II, the U.S. government began conducting research on radioactive materials. They needed to develop a way to filter out all harmful particles to keep the air clean and scientists could breathe. HEPA filters came into being. In the 50s and 60s of the 20th century, the HEPA filter was very popular. HEPA is a filter standard, that is, for a 0.3-micron particle, it has a filtration efficiency of more than 99.97%, and it requires a single filtration efficiency. In an air purifier, the wind resistance of a filter that meets the HEPA standard is too high to be applicable. In the 1980s, th...
阅读全文

Global Air Purifier Industry Situation and Prospects Research report

图片
Among ten top topic news  in 2017, one of them is climate change. Global warming trend have been paid more and more attention. Air pollution is a problem every country is suffering now. So air purifier industry will be a new industry. The report presents an in depth analysis concerning the key trends and growth prospects of the air purifier industry in the global arena complemented with the integrity of logic and the comprehensiveness of contents that is further guaranteed to enrich the report reader who is either a industry insider or investor, with the professional and extensive data analysis. The report is intended to provide cutting-edge market intelligence and help decision makers take sound investment evaluations. In addition, the report also provides the basic overview of the industry inclusive of its definition, applications, classifications, industry chain structure, international developmental history, competitive landscape analysis, the major regions development...
阅读全文