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custom drawstring bags,wholesale drawstring bags,drawstring bags manufacturers
china drawstring bags manufacturers cjeap personalized drawstring bags wholesale custom made in china suppliers manufacturers….. called "N95 masks ." Where to buy : Shop , prices generally ranging from $ 20-30 Advantages : There are four plug-in filters, better protection and filtering Disadvantages: high density , airtight , most people will be uncomfortable to wear dust masks ● ( activated carbon masks ) effect : There is some dust , bacteria and virus filtering effect, but limited protective effect of PM2.5 . A total of 4 layers, respectively, from the surface to the inside is full of cotton , dust acupuncture cloth , activated carbon ( filter layer ) and honeycomb cotton cloth, filter better, and generally giving away a layer of activated carbon filters for routine replacement. Where to buy : ordinary pharmacy , Taobao shop , pharmacy prices are generally 10 yuan / only, there are two types of children and adults advantages: adding activated carbon to effectively absorb odors ; arched shape , curve fitting face , wearing more comfortable ; may repeated use Disadvantages: not enough ventilation to carry too convenient. In this case, the anti- pm2.5 masks little advice we do not buy some of the street masks, those little protective properties. Recommendations to the pharmacy or online to buy, buy online alert to see whether there is some authority certificate again , this point is very important.
www.custom-drawstring-bags.com
custom-drawstring-bags.com
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