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What you should know about DIY masks and ventilators
7 Apr 2020 Made with simple parts that cost less than 3 combined and are common in are sterilizing their equipment and using highquality materials.
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China BYD unveils world 39s largest massproduced facemask
3 Mar 2020 A production line for highquality face masks requires about 300 parts for various gears chains and rollers 90 of which are BYD 39s
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As pollution gets worse airfiltering face masks get fashionable Vox
9 Mar 20 9 The global future of air quality doesn 39t look so good. parts of China regularly wear what are often called courtesy masks surgical masks
Coronavirus Why some countries wear face masks and others don 39t
Step outside without a face mask in Hong Kong and you 39ll get looks. sense of security where you end up ignoring or forgetting to practice good hygiene. in some parts of China you could be arrested or punished for not wearing a mask.