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Oct 29, 2020 · Suzhou Elhong Imp. & Exp. Co., Ltd. Was founded in 2007, It is belongs to National Group, We are a group company which is one of the foremost professional industry air filter suppliers in China, with the rich experience in this area, we had also growed up to be an sucessfully supplier of the domestic air purifiers, which we have our registed brand in Germany. China HEPA Filter manufacturer, Pocket Filter, Panel Oct 29, 2020 · Suzhou Elhong Imp. & Exp. Co., Ltd. Was founded in 2007, It is belongs to National Group, We are a group company which is one of the foremost professional industry air filter suppliers in China, with the rich experience in this area, we had also growed up to be an sucessfully supplier of the domestic air purifiers, which we have our registed brand in Germany.

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The vast majority of face masks on the market give no protection against PM2.5, even if the manufacturers claim they do, said Lei Limin, vice chairman of the China Textile Commerce China's face mask industry under scrutiny as pollution The vast majority of face masks on the market give no protection against PM2.5, even if the manufacturers claim they do, said Lei Limin, vice chairman of the China Textile Commerce

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Jan 01, 2020 · PM 2.5 separator directly affects the accuracy of PM 2.5 sampling. The specification testing and evaluation for PM 2.5 separator is particularly important, especially under China's wide variation of terrain and climate. In this study, first a static test apparatus based on polydisperse aerosol was established and calibrated to evaluate the performance of the PM 2.5 separators. Development of a static test apparatus for evaluating the Jan 01, 2020 · PM 2.5 separator directly affects the accuracy of PM 2.5 sampling. The specification testing and evaluation for PM 2.5 separator is particularly important, especially under China's wide variation of terrain and climate. In this study, first a static test apparatus based on polydisperse aerosol was established and calibrated to evaluate the performance of the PM 2.5 separators.

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