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Prof. Kian Fan Chung:Yes, there are other protective ways that people can take, using air filters in the home to reduce the indoor levels of pollutants. Using masks outside in the polluted areas is also a reasonable protection to take, but we need to design more comfortable and effective masks.
The idea of nasal filters is not new, and some are available in Western countries to help reduce exposure to allergens such as pollen. One study conducted in 2016 on a product made in Denmark
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Concentrations of 20 perfluorinated alkyl substances (PFASs) were measured in dust samples from 41 homes in Canada, the Czech Republic, and United States in the spring-summer of 2013. The most frequently detected compounds were perfluorohexanoic
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Dec 11, 2015 · Eastern & Central Europe. and anti-pollution masks are in huge demand. But for many Chinese, the cost of name-brand air filters is out of reach. Residents wore protective masks