CU Mask ｜ Three reusable masks are better than the government, Zhong Guobin and Xingzibian models

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Written by: McCain

2020-05-06 13:46

The new coronary pneumonia epidemic continues. The government today (6th) began accepting the free registration of the "Copper Core Anti-epidemic" mask (CU Mask). The public can receive it within two weeks at the earliest. The "Copper Core Anti-epidemic" mask was developed by the Hong Kong Textile and Apparel R & D Center and undertaken by the Polytechnic University. It uses copper oxide and micro-copper to inhibit bacteria. It can be washed with water 60 times and reused. There is also a common use PolyU technology on the market The 60-time washable cloth masks produced by the Liberal Party leader, Zhong Guobin in the textile and clothing industry. Although he has revealed that the masks cost 100 yuan each, there is no retail for the time being. In addition, Chen Yixi, the "Son of Stars", used photocatalysts to develop cloth masks that can be reused 50 times.

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The government launched a reusable "copper core anti-epidemic" mask. The mask has a total of six layers, including the outermost layer is knitted fabric, with a mixture of copper oxide and cotton, which can prevent spray, and the middle is a micro-copper non-woven fabric and filter layer, which can be separated Bacteria and prevent droplets. Ge Yiwen, chief executive of the Hong Kong Textile and Apparel R & D Center, claimed that copper oxide and micro-copper can inhibit the growth of bacteria, so people only need to wash with cold soapy water. However, the mask provided by the government has only one color, and some citizens may not like it. The Secretary for Innovation and Technology Xue Yongheng revealed that the masks cost about 40 yuan each, and the place of origin is Hong Kong and Southeast Asia.

The leader of the Liberal Party and the legislator of the Legislative Council in the textile and clothing industry, Zhong Guobin, made reusable masks with antibacterial new materials. Each mask can be used about 60 times, and has received international inspection and certification reports. (Profile picture / photographed by Gao Zhongming)

Zhong Guobin masks temporarily receive a single group price of 100 yuan each

Reusable cloth masks, in fact, at least two similar supplies on the market, including Zhong Guobin using PolyU technology to produce antimicrobial materials, mask certification report has been released on March 4. The report shows that the cloth mask can still isolate 99.9% of Staphylococcus aureus, Klebsiella pneumoniae and Escherichia coli before being washed and after 60 washings. However, the masks are similar to government masks, which can only be washed with cold soapy water. Machine washing is not recommended.

Zhong Guobin once revealed that the masks were hand-made by Hong Kong female workers in car clothing. The monthly production capacity is up to 3 million pieces, the price is about 100 yuan, and different colors such as white, blue, orange, pink, etc. are available. At present, only orders from groups are accepted; since the mask was produced in February, the mask has been given to 11 institutions.

Photocatalyst machine washable cloth mask sold out within 3 hours

As for the 100nm mask developed by Chen Yixi and others, the outermost layer of the mask has a medical-grade photocatalyst coating made in Taiwan. When irradiated with ultraviolet light, it has a sterilization function, and the middle layer has a replaceable melt-blown nonwoven filter , Can filter 99.6% of particles over 0.3 microns, but the filter can only be used for a maximum of 5 days. After removing the filter, the mask can be washed 50 times by hand or in the "hand wash mode" of the washing machine, but it can only be washed with soap and cold water. Do not add bleach or softener.

The 100nm mask with UV disinfection bag and 10 filter cartridges is priced at 180 yuan. The mask is available in 7 colors, including black, gray, blue, pink and purple. However, after the mask was launched on April 25, 10,000 sets were sold out within 3 hours, and the second batch will not arrive until the middle and late this month.

K Kwong advocates self-made cloth mask and filter element for epidemic prevention

I can't buy the above two cloth masks, what should I do? Dr. K Kwong, a doctor of chemistry, advocates the public to make cloth masks for epidemic prevention. In emergency situations, if there is no mask, add paper towels and kitchen paper to the cloth mask for emergency. He also launched a Nanofiber filter cartridge with 0.3-micron fine particles separated by about 90% with local manufacturers, priced at 30 yuan for 70 yuan.

K Kwong advocates the public to make cloth masks for epidemic prevention and use them with different filter elements. (Profile picture / Photo by Huang Shuhui)

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