Hengkun mask is n95 medical mask. At first, similar masks and veils did not appear for the purpose of blocking the virus. It was not until the19th century that Pasteur and Koch discovered that pathogens came from bacteria through microbiological research methods, and masks came into being.
19 18 After the Spanish flu, people were forced to wear masks, which was the beginning of the widespread spread of masks. Since then, not only medical science has developed rapidly, but also masks have become an indispensable medical and health care tool and have been widely popularized.
We began to be familiar with masks, mainly during the SARS period in 2003, and masks were widely used. After several influenza, such as influenza A (HINI) in 2009, masks appeared again.
In recent years, smog is prevalent, and anti-fog masks are widely used, but anti-fog masks are not suitable tools to deal with diseases. Next, we will talk to you about why masks can resist bacterial viruses and how to choose different masks.
The function of the mask is to block the source of the virus by isolating tiny particles. When early masks first appeared, they were mainly gauze. Now medical masks are generally made of polypropylene meltblown cloth.
Melt-blown cloth is a porous material with a pore size of 1-5 microns, which has good air permeability and is often used as the raw material of masks.
Domestic mask brands:
Green Shield Mask is a famous mask brand in Shanghai and enjoys a high reputation in the whole industry. Is a well-known health textile enterprise, integrating the production and sales of disposable mask products.
Yangpu Improvement Company was established in 1996. Guangzhou is a medical technology enterprise specializing in the production of disposable masks. The brand of anti-fog mask is well known. Now it is listed in Shenzhen and has more than 20 companies in Hong Kong, the United States and other regions.
Chaomei Chemical Co., Ltd. is a disposable brand enterprise under Beijing jiande city Chaomei Chemical Co., Ltd., which is engaged in the research and development and production of professional mask products. Its products include professional dust masks and gas masks.