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Shoppers wearing face masks at the Dubai Mall. AFP
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An official operates a temperature screening point at Dubai International Airport while wearing a mask. Jon Gambrell / AP
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ABU DHABI, UNITED ARAB EMIRATES , June 1 – 2020 :- A woman wearing protective face mask as a preventive measure against the spread of coronavirus at the bus stop in Abu Dhabi. Pawan Singh / The National
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Dubai, United Arab Emirates - People wearing mask in Dubai. Leslie Pableo / The National
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Women wearing masks at a restaurant in a Dubai mall. AFP
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People wearing masks for protection against the Coronavirus at a mall in Dubai. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PVHEFQBIT3JNDOTNW3ZMPI32UY.jpg?smart=true&auth=1e65c81bf54c21258583d39c340f2c321aa9daa50de381a920d5ecf5958a8625&width=400&height=225)
Shoppers wearing face masks at the Dubai Mall. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/ZZ4VPUFLPIED5QJXEWACKYQNDQ.jpg?smart=true&auth=ecd8de84a2a93484274e496751e39c39df7ada11950067613b0aea6436a7de78&width=400&height=225)
An official operates a temperature screening point at Dubai International Airport while wearing a mask. Jon Gambrell / AP
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ABU DHABI, UNITED ARAB EMIRATES , June 1 – 2020 :- A woman wearing protective face mask as a preventive measure against the spread of coronavirus at the bus stop in Abu Dhabi. Pawan Singh / The National
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/VGMKA3XKYJUCCT24Q5EJQMEOI4.jpg?smart=true&auth=2f43b5c27677a6c4d38d8828a218b9ca54078bf6a71f0f2e947e20ba283dace8&width=400&height=225)
Dubai, United Arab Emirates - People wearing mask in Dubai. Leslie Pableo / The National
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Women wearing masks at a restaurant in a Dubai mall. AFP
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People wearing masks for protection against the Coronavirus at a mall in Dubai. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PVHEFQBIT3JNDOTNW3ZMPI32UY.jpg?smart=true&auth=1e65c81bf54c21258583d39c340f2c321aa9daa50de381a920d5ecf5958a8625&width=400&height=225)
Shoppers wearing face masks at the Dubai Mall. AFP
Covid-19: are two masks better than one?
US analysis found two masks could give 90 per cent protection, but added layers can be tricky to breathe through
![Gillian Duncan](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/https%3A%2F%2Fs3.amazonaws.com%2Farc-authors%2Fthenational%2F736ebb26-e270-44c5-96a2-80452d783888.png?smart=true&auth=6b2c4dc0614f332daaa4e848c41f090496fd16da3ccccaa940132372e6a74710&width=70&height=70)
Gillian Duncan
02 February, 2021
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