Battery-powered face mask with a copper mesh heated to 194°F that KILLS coronavirus in the air is designed by MIT scientists



 

Rather than filtering them out, an electric facemask, pictured, could kill coronavirus particles by passing the air you breathe through a fine copper mesh heated to 194°F (90°C)


The mask would be covered in insulating neoprene to allow it to be worn safely

It will likely be more expensive than cloth and surgical masks, or N95 respirators

However, it would be ideal for situations where risk of viral exposure was high

Furthermore, the mask would not need to be binned or sterilised after use

The team have patented the design and are working to construct prototypes 


By IAN RANDALL FOR MAILONLINE

PUBLISHED: 12:13 BST, 22 October 2020 | UPDATED: 12:51 BST, 22 October 2020


 

가열시켜 코로나 바이러스를 죽이는 배터리 구동 마스크


MIT연구소 개발


   전기 안면 마스크는 그것들을 걸러내기 보다는, 당신이 숨쉬는 공기를 194°F (90°C)로 가열된 미세한 구리 망사를 통과시켜 코로나바이러스 입자들을 죽일 수 있다.


미국 MIT 기술연구소에서 나온 이 개념은 뜨거운 금속 필터를 절연 네오프렌으로 둘러싸서 착용할 수 있게 하는 것이다.




만약 상용화될 경우 배터리 구동 장치는 천 마스크, 수술 마스크 또는 N95 호흡기보다 더 비쌀 것이라고 연구진은 말했다.


그러나 가열 마스크는 건강관리를 집중적으로 해야 할 환경이나 복잡한 대중 교통과 같이 바이러스 노출 위험이 높은 상황에 적합할 것이다.


또한 사용 후 폐기 또는 멸균할 필요가 없다.

마스크 디자인에 대한 특허를 출원한 연구원들은 신체 검사를 실행할 시제품을 만들기 시작했다.


황기철 콘페이퍼 에디터

Ki Chul Hwang Conpaper editor curator


edited by kcontents


Rather than filtering them out, an electric facemask could kill coronavirus particles by passing the air you breathe through a fine copper mesh heated to 194°F (90°C) .


The concept — from the Massachussets Institute of Technology in the US — would see the hot metal filter surrounded by insulating neoprene to allow it to be worn. 


If commercialised, the battery-powered device would likely be more expensive than a cloth mask, surgical mask or an N95 respirator, the researchers said.


However, the heated mask would be ideal for situations where risk of viral exposure was high — such as in a healthcare setting, or on crowded public transport.


Furthermore, it would not need to be disposed of or sterilised after being used. 


The researchers — who have filed for a patent on the mask design — have begun to construct prototypes on which to run physical tests. 


'The vast majority of masks today function by filtration, filtering particles by size or electric charge,' explained paper author and chemical engineer Samuel Faucher. 


'This is a completely new mask concept in that it doesn’t primarily block the virus,' added senior author and fellow chemical engineer Michael Strano.



The concept — from the Massachussets Institute of Technology in the US — would see the hot metal filter surrounded by insulating neoprene, pictured, to allow it to be worn safely





'It actually lets the virus go through the mask, but slows and inactivates it.'


In their study, the researchers created mathematical models to determine the optimum temperature range the mesh will need to reach in order to thermally inactivate coronavirus particles as they are breathed in or out of the mask.


They determined that a temperature of around 194°F (90°C) can reduce viral concentration in the air by between a factor of a thousand and a million — depending on how big the mask itself is.


This temperature can be achieved by running an electric current across the mesh — which is made of 0.1 millimetre-thick copper wire — taking energy from a 9-volt battery, which should be able to power the mask for a few hours at a time.


The team were also able to improve the mask's efficiency by creating it as a so-called 'reverse flow reactor' — in which breathing in and out causes the air flow through the mesh to reverse, passing viral particles back across the mesh many times. 


The air enters and leaves the outside of the mask at the side, near the ears.


'This design means you can wear a small mask, something that will fit on your face, but the virus can spend much more time getting deactivated than it would without the reverse flow reactor design,' said Professor Strano. 




The battery-powered device would likely be more expensive than a cloth mask, surgical mask or an N95 respirator, the researchers said. However, the heated mask would be ideal for situations where risk of viral exposure was high — such as in a healthcare setting, or on crowded public transport. Also, it would not need to be disposed of or sterilised after use




'What we show is that it's possible to wear something on your face that’s not too cumbersome, that can actually allow you to breathe medically sterile air,' said Professor Strano.


'The prospect of being able to breathe in medically sterile air and breathe out medically sterile air — protecting the people around you and protecting yourself — is just the next step. It’s better technology.'


A pre-print of the researcher's article, which has not yet been peer-reviewed, can be read on the bioRxiv repository.


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https://www.dailymail.co.uk/sciencetech/article-8867627/COVID-19-Battery-powered-face-mask-uses-copper-mesh-heated-194-C-KILL-coronavirus.html


 kcontents

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