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2024年4月21日 · Masks vary in how well they work, with N95 and surgical masks outperforming cloth masks, but even cloth masks, with their variability in fabric type and mask fit, provide wearers with substantial protection from particles carrying COVID-19.
2024年4月4日 · Dennis Ho Kai-yin, founder of local mask manufacturer Acc Biotech, said sales were down sharply compared with during the pandemic, but the market still existed as many people made a habit of ...
2024年3月31日 · Companies transforming factories to make masks. By Ma Si in Beijing and Zhou Huiying in Harbin | China Daily | Updated: 2020-02-19 09:39. Workers pack newly produced masks on Sunday at the SGMW factory in Liuzhou, Guangxi Zhuang authonomous region.
2024年4月21日 · More than 76,000 new mask factories were registered in the first half of 2020. As the pandemic subsided, however, China suddenly had excess production capacity. The unit price of masks plummeted and factories were saddled with large inventories.
2024年4月20日 · China is able to serve front-line healthcare workers' urgent needs for medical masks to fight the novel coronavirus pneumonia outbreak, as the country's current manufacturing of masks is at 94 percent of capacity, the country's top economic regulator said on
4 天前 · The factory in Guangzhou, with a capacity of assembling 1,000 medical masks per minute, and 1.2 million per day, is also believed to be among the fastest in the world, said officials with Guangzhou Municipal Industry and Information Technology Bureau.
2024年4月16日 · The findings showed that, in comparison with wearing a high Delta P mask (Delta P~5.3), wearing masks with low Delta P (Delta P~2.7) could reduce the loading on cardiopulmonary system (e.g. heart rate and respiratory rate) and fatigue of manual workers.
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