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Identity confusion, trademark , specifications , manufacturer name site , protection, use, applicable object

And places, such information is not comprehensive, consumers in the purchase and use of masks is likely to cause confusion ; except for single-use port

Hood , the lack of marked reusable packaging masks masks on cleaning and disinfection , maintenance methods and the use of Shou

Life ; generally conventional masks, such as cotton masks, gauze masks, disposable masks , activated carbon masks do not have a very

Good dust effects , inappropriate use of fog and haze ; marked on the market for the PM2.5 protective masks filter efficiency

50 % or more than 90% of the total, the uneven quality of the existence of the phenomenon . It is understood that the current domestic

Not for PM2.5 particulates respirator current standards drafted by the Centre to develop "PM2.5 dust port

Cover technical standard " is still an audit . Lu Bing , director of Jiangsu Province Special Security Products Quality Inspection Center , said ,

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