Dr. Tsing Hua'S Father'S Regiment Creates "Children'S Haze Prevention Mask".

< p > that is Hou Yanlin.

In order to make a suitable anti haze mask for her 3 year old daughter, Hou Qinglin, a postdoctoral student in Qinghua University, plans to do it herself, and gets a response from a group of equally troubled Dr. Ph. D.

The more than 30 doctors and fathers from different disciplines set up a team to seriously investigate the possibility of technological realization, and design an innovative scheme that can achieve the effect of resisting haze and keep the price that the general public can bear.

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< p > heard this news, many foreign parents came to Tsinghua to find Hou Yanlin "buy masks".

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< p > Hou Yanlin said that the production process of this smog prevention and haze mask not only used advanced technologies such as 3D printing and 3D scanning, but also used food grade silicone materials and the latest research and development filter in the United States.

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In May this year, children will be able to use this mask for P.

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< p > < strong > daughter can not buy a mask to make her father a "mask expert" < /strong > /p >

In 2013, Taobao sold hundreds of millions of dollars of anti fog and haze masks, but there were few N95 masks for children under four years old.

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Hou Yanlin, who works as a postdoctoral researcher at Tsinghua University, has now become an expert in the production of children's masks. The reason is "in order to let his daughter have a proper anti haze mask", P

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< p > "every time I go to fog and haze, my daughter will have a runny nose. It is quite serious."

Hou Yanlin said that his daughter is 3 years old. Children always want to go out to play, but when they think of the weather in Beijing, they do not want their children to go out.

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< p > "I searched the Internet, but I didn't find a mask suitable for young children."

Hou Yanlin said, "most of them are obviously too large, not suitable for children's faces, and wear air leakage around them.

A few of the brand name N95 respirators purchased by friends from overseas are not suitable for children aged three.

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< p > Hou Yanlin said that in 2013, Taobao sold hundreds of millions of dollars of anti fog and haze masks, but there were few N95 masks for children under four years of age.

If parents are misled, allowing their children to wear unqualified masks to increase outdoor activities will increase the injury.

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< p > < strong > "doctor and father" group is the director of children's mask, < /strong > < /p >.

< p > the whole team has three or four people, including materials science, medicine, design and psychology. Most of them have top doctor's caps.

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< p > buying a suitable child respirator has become a common worry for parents. Can you make it yourself? Last November, Hou Yanlin sent this idea to WeChat's circle of friends.

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< p > Hou Yanlin said that at first he wanted to make some friends to raise money for masks, but with the increasing number of volunteers and followers, the act of making masks for their children turned into a public service action.

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< p > "our whole team has three or four dozen people, from all professions, including materials science, medicine, design, psychology, because most of my social circles are in Colleges and universities, most of these friends have top doctor caps."

Hou Yanlin said, everyone is a volunteer, in the process of making masks, everyone takes the initiative to play their professional expertise.

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< p > for example, Dr. Liu Shuming, deputy chief physician of maxillofacial surgery of Peking University Stomatological Hospital, has consulted many medical documents, and has done a lot of academic support for the team.

Dr. Jing Jing of Academy of Fine Arts, Tsinghua University, as a fashion design expert, has made a lot of professional advice on fabric and manufacturing technology.

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After P's discussion, there is a consensus on the production of children's masks, that is, we should give full consideration to the physical and psychological characteristics of children, and we must have thoughtful and innovative design.

"Children's mask is not a small mask for adults."

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< p > < strong > template 3D printing development wears the most comfortable masks < /strong > /p >

< p > they collect children's facial features data online and try every 3D mask model to develop children's most comfortable respirators.

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< p > "after the drawing design is completed, we start making templates."

Hou Yanlin said the team came up with the idea of making templates using 3D printing.

"Just now, a company founded by Dr. Guo Ge, a Tsinghua alumni, is the first Chinese company to export domestic 3D printers to overseas companies."

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After listening to this project, Guo Ge, P, volunteered to provide 3D printing technical support free of charge.

Hou Yanlin said that because of the intervention of 3D technology, the development process of child masks has been greatly accelerated, and the sixth version has been improved.

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< p > in mid March, when they completed the third edition < a href= "http://www.91se91.com/news/index_c.asp" > 3D printing < /a >, they issued a solicitation campaign to collect children aged between 1 and 6 years old, and scanned them for three dimensions.

Hou Yanlin said that in order to make the respirator more universal, it is necessary to measure more facial features of children, and try every 3D mask model on the face of the child to modify it at any time before it can develop the most comfortable mask.

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"P >!! --EndFragment--!" we released just over two days, and thirty or forty parents offered to bring their children over.

We hope to collect more than 500 samples, so that we can have a wide range of representativeness.

Hou Yanlin even envisaged that if enough samples were collected, the child's facial features could be made into a database. "This will directly verify the design of the child's face on the computer."

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< p > Hou Yanlin said that when the < a href= "http://www.91se91.com/news/index_c.asp" > child mask > /a > final version, the data will be sent to the United States to complete the final flexible material 3D printing.

"3D printing of flexible materials is only available overseas."

Hou Yanlin said that a well-known Chinese designer in California, the United States, has indicated that the company that he contacted with the United States provided sponsorship and printed flexible and pparent templates without compensation.

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< p > food grade silicone with the latest filter material in the United States < /p >

< p > the selection of children's masks should reach the food grade standard. "Children are not adults, and wearing masks will stretch their tongue, so we must ensure safety."

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< p > < strong > the "fog and haze" a href= "http://www.91se91.com/news/index_c.asp" Mask "/a" will be available for children to be listed. < /strong > /p >

< p > "in mid April, we will open the silicone mold in the manufacturer of masks and start production in about a month, and we will be able to produce 10 thousand in one night."

Hou Yanlin said that the first batch of products will be seen as early as May and June.

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< p > "silica gel mold" is a process of producing this mask, which is equivalent to raw material preparation. The mask is unique in that it uses food grade silicone material.

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< p > Hou Yanlin said that during the early discussions, the father of research material science suggested that the selection of children's masks should reach the food grade standard. "Children are not adults, and wearing masks will stretch their tongue, so we must ensure safety."

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< p > what kind of food grade silicone is it? Hou Yanlin said it is a flexible silicone gel with the same texture as the nipple on the baby bottle.

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< p > not only that, the filter element of this mask will also use the latest materials developed by the United States.

Hou Yanlin joined a US inventor through his friends, who had just developed a new filter material, which had a 99.9% filtration rate for particles and a higher permeability than gauze. This meant that the child would not suffocate after wearing a mask.

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The inventors of P, who heard the stories of their fathers, immediately offered to donate tens of thousands of dollars of filter cartridges.

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< p > Hou Yanlin said that the mask has only tens of grams of weight, which is similar to other existing masks, and does not increase the face burden of children.

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< p > < strong > refrain from commercial cooperation so that every parent can afford to buy < /strong > /p >

< p > there are large enterprises out of the investment of twenty million yuan to send him thirty percent of the shares of the conditions, but because they do not meet the original intention that every parent can afford, are Hou Yanlin declined /p.

< p > food grade plastic materials, the latest research and development of filter cartridge in the United States. How much does it cost to sell such a "tall" mask in the future? < /p >

< p > Hou Yanlin said, the base of the mask is about thirty or forty yuan, and the filter element is one yuan each. "That is to say, even if you change the filter core every day, you only need 365 yuan."

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< p > "this is the cost of raw materials. We want to make sure that all the children in need can use this mask."

Hou Yanlin said that the children's edition of foreign professional masks brand is expensive. A brand name respirator that can only wear a few days actually charges 225 yuan, which is beyond the financial affordability of many families.

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< p > Hou Yanlin said that as of now, all the labor, design, research and development, 3D printing and so on are free. If converted into cash, there will be about one million yuan.

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< p > "but this does not accord with the original intention that we can afford to pay for small profits but quick turnover so that every parent can afford it."

Hou Yanlin said, "in the future, we may set up our own business companies to subsidize children's masks by developing the money we sell for adult masks."

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< p > "everyone in our team has children, and these are all for children. At the beginning, they are for their children, and now they want to help more children."

Hou Yanlin said, "in the Internet era, we have found like-minded people. Making a mask for children is actually something we should do as a father."

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At the end of the interview, Hou Yanlin said, "we are not charitable organizations. We are just a group of helpless parents. In fact, this is a kind of mutual help and self-help behavior, that is, we want our children to breathe clean air."

It is not successful for children to wear masks. Success is to let children safely remove their masks.

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