Hospitals across the world are looking to reuse face masks as demand increases sharply amid the Covid-19 pandemic.
Tens of thousands of medical staff require masks and other protective equipment every day, increasing the pressure on the global supply.
In early March, the World Health Organisation estimated 89 million masks would be needed each month and called on manufacturers to boost production.
Increasing demand has led mask prices to more than triple, with bans on exporting personal protective equipment also a contributing factor.
This month, Peter Tsai, a Taiwanese-American materials scientist who developed a patented filtration fabric used in N95 masks, said heating a used mask to 70°C for 24 hours could destroy the virus, while only reducing the effectiveness of the mask by 0.5 per cent.
But in a study published online on Friday, scientists in the US identified two other methods that rendered the virus harmless.
Their techniques had even less of an effect on mask performance.
The US researchers found vaporised hydrogen peroxide caused “extremely rapid inactivation” of the virus on N95 masks and had little effect on the masks’ ability to filter out particles.
They also found UV light destroyed the virus more slowly than vaporised hydrogen peroxide, but had a minimal effect on mask effectiveness.
Because of its effect on the masks’ ability to filter out particles, heating at 70°C was recommended by the US researchers for no more than two decontamination cycles.
Another method, washing masks with 70 per cent ethanol, also made the virus inactive quickly but led to “sharp drops” in mask performance, the researchers said.
The scientists, led by Dr Robert Fischer of the National Institute of Allergy and Infectious Diseases, said they preferred the vaporised hydrogen peroxide method.
In online guidance, the US Centres for Disease Control and Prevention said decontamination and reuse should be carried out only as a “crisis capacity strategy”.
Based on findings that the virus does not remain viable on surfaces for more than 72 hours, it suggested issuing healthcare workers with five masks, with one used each day.
It said each mask should be placed in a paper bag at the end of a shift and reused only five days later.
With this method, masks could be reused up to five times, although they should be thrown out before this if they are visibly damaged, if the straps no longer give a tight fit, or if there is visible contamination with bodily fluids or make-up.
Among the hospitals with processes in place to reuse masks is the Cleveland Clinic in Abu Dhabi.
This month, the hospital began using ultraviolet light to decontaminate N95 masks. The technique deactivates the virus particles.
Jason Unger, a processing manager at Cleveland Clinic Abu Dhabi, said the efforts would help the hospital should there be any “supply chain problems”.
“We want to make sure we can give N95 masks to all of our caregivers," Mr Unger said.
Several ways to decontaminate masks have been found to be unsafe, including baking, boiling, bleaching, or using soapy water or sanitising wipes.
Experts also said masks should not be microwaved at home, because the power settings of appliances vary and metal components could catch fire.
People using simple cloth masks are advised by the California Department of Health to wash them with hot, soapy water after each use, or at least daily, before drying them on a hot cycle.
Nepotism is the name of the game
Salman Khan’s father, Salim Khan, is one of Bollywood’s most legendary screenwriters. Through his partnership with co-writer Javed Akhtar, Salim is credited with having paved the path for the Indian film industry’s blockbuster format in the 1970s. Something his son now rules the roost of. More importantly, the Salim-Javed duo also created the persona of the “angry young man” for Bollywood megastar Amitabh Bachchan in the 1970s, reflecting the angst of the average Indian. In choosing to be the ordinary man’s “hero” as opposed to a thespian in new Bollywood, Salman Khan remains tightly linked to his father’s oeuvre. Thanks dad.
Women & Power: A Manifesto
Mary Beard
Profile Books and London Review of Books
Benefits of first-time home buyers' scheme
- Priority access to new homes from participating developers
- Discounts on sales price of off-plan units
- Flexible payment plans from developers
- Mortgages with better interest rates, faster approval times and reduced fees
- DLD registration fee can be paid through banks or credit cards at zero interest rates
Killing of Qassem Suleimani
AVOID SCAMMERS: TIPS FROM EMIRATES NBD
1. Never respond to e-mails, calls or messages asking for account, card or internet banking details
2. Never store a card PIN (personal identification number) in your mobile or in your wallet
3. Ensure online shopping websites are secure and verified before providing card details
4. Change passwords periodically as a precautionary measure
5. Never share authentication data such as passwords, card PINs and OTPs (one-time passwords) with third parties
6. Track bank notifications regarding transaction discrepancies
7. Report lost or stolen debit and credit cards immediately
THE BIO
Born: Mukalla, Yemen, 1979
Education: UAE University, Al Ain
Family: Married with two daughters: Asayel, 7, and Sara, 6
Favourite piece of music: Horse Dance by Naseer Shamma
Favourite book: Science and geology
Favourite place to travel to: Washington DC
Best advice you’ve ever been given: If you have a dream, you have to believe it, then you will see it.
The specs
Engine: 2.0-litre 4-cylturbo
Transmission: seven-speed DSG automatic
Power: 242bhp
Torque: 370Nm
Price: Dh136,814
The five new places of worship
Church of South Indian Parish
St Andrew's Church Mussaffah branch
St Andrew's Church Al Ain branch
St John's Baptist Church, Ruwais
Church of the Virgin Mary and St Paul the Apostle, Ruwais
MOUNTAINHEAD REVIEW
Starring: Ramy Youssef, Steve Carell, Jason Schwartzman
Director: Jesse Armstrong
Rating: 3.5/5
NO OTHER LAND
Director: Basel Adra, Yuval Abraham, Rachel Szor, Hamdan Ballal
Stars: Basel Adra, Yuval Abraham
Rating: 3.5/5
Lexus LX700h specs
Engine: 3.4-litre twin-turbo V6 plus supplementary electric motor
Power: 464hp at 5,200rpm
Torque: 790Nm from 2,000-3,600rpm
Transmission: 10-speed auto
Fuel consumption: 11.7L/100km
On sale: Now
Price: From Dh590,000
'The Ice Road'
Director: Jonathan Hensleigh
Stars: Liam Neeson, Amber Midthunder, Laurence Fishburne
2/5
Conflict, drought, famine
Estimates of the number of deaths caused by the famine range from 400,000 to 1 million, according to a document prepared for the UK House of Lords in 2024.
It has been claimed that the policies of the Ethiopian government, which took control after deposing Emperor Haile Selassie in a military-led revolution in 1974, contributed to the scale of the famine.
Dr Miriam Bradley, senior lecturer in humanitarian studies at the University of Manchester, has argued that, by the early 1980s, “several government policies combined to cause, rather than prevent, a famine which lasted from 1983 to 1985. Mengistu’s government imposed Stalinist-model agricultural policies involving forced collectivisation and villagisation [relocation of communities into planned villages].
The West became aware of the catastrophe through a series of BBC News reports by journalist Michael Buerk in October 1984 describing a “biblical famine” and containing graphic images of thousands of people, including children, facing starvation.
Band Aid
Bob Geldof, singer with the Irish rock group The Boomtown Rats, formed Band Aid in response to the horrific images shown in the news broadcasts.
With Midge Ure of the band Ultravox, he wrote the hit charity single Do They Know it’s Christmas in December 1984, featuring a string of high-profile musicians.
Following the single’s success, the idea to stage a rock concert evolved.
Live Aid was a series of simultaneous concerts that took place at Wembley Stadium in London, John F Kennedy Stadium in Philadelphia, the US, and at various other venues across the world.
The combined event was broadcast to an estimated worldwide audience of 1.5 billion.
Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- Spaces for historical and cultural exploration
- An elevated football field that doubles as a helipad
- Specialist robotics and science laboratories
- AR and VR-enabled learning centres
- Disruption Lab and Research Centre for developing entrepreneurial skills
Company%20Profile
%3Cp%3E%3Cstrong%3EName%3A%3C%2Fstrong%3E%20HyveGeo%3Cbr%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%202023%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Abdulaziz%20bin%20Redha%2C%20Dr%20Samsurin%20Welch%2C%20Eva%20Morales%20and%20Dr%20Harjit%20Singh%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3ECambridge%20and%20Dubai%3Cbr%3E%3Cstrong%3ENumber%20of%20employees%3A%3C%2Fstrong%3E%208%3Cbr%3E%3Cstrong%3EIndustry%3A%20%3C%2Fstrong%3ESustainability%20%26amp%3B%20Environment%3Cbr%3E%3Cstrong%3EFunding%3A%20%3C%2Fstrong%3E%24200%2C000%20plus%20undisclosed%20grant%3Cbr%3E%3Cstrong%3EInvestors%3A%20%3C%2Fstrong%3EVenture%20capital%20and%20government%3C%2Fp%3E%0A
Empty Words
By Mario Levrero
(Coffee House Press)
Voy!%20Voy!%20Voy!
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Omar%20Hilal%3Cbr%3E%3Cstrong%3EStars%3A%3C%2Fstrong%3E%20Muhammad%20Farrag%2C%20Bayoumi%20Fouad%2C%20Nelly%20Karim%3Cbr%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%204%2F5%3C%2Fp%3E%0A
All%20The%20Light%20We%20Cannot%20See%20
%3Cp%3E%3Cstrong%3ECreator%3A%20%3C%2Fstrong%3ESteven%20Knight%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStars%3A%C2%A0%3C%2Fstrong%3EMark%20Ruffalo%2C%20Hugh%20Laurie%2C%20Aria%20Mia%20Loberti%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E1%2F5%C2%A0%3C%2Fp%3E%0A
The specs: 2018 Opel Mokka X
Price, as tested: Dh84,000
Engine: 1.4L, four-cylinder turbo
Transmission: Six-speed auto
Power: 142hp at 4,900rpm
Torque: 200Nm at 1,850rpm
Fuel economy, combined: 6.5L / 100km
Huroob Ezterari
Director: Ahmed Moussa
Starring: Ahmed El Sakka, Amir Karara, Ghada Adel and Moustafa Mohammed
Three stars
Killing of Qassem Suleimani
UAE currency: the story behind the money in your pockets
