fbpx
Connect with us

News

“Face shield with double masks gives up to 96% protection from Delta” Says Health DG

Published

Dr Noor Hisham Black Mask Face Shield Double Mask
Source: Astro Awani & DG Hisham l Twitter

Follow us on Facebook, Youtube, Twitter, and Instagram for the latest stories and updates daily.

The last time Dr Noor Hisham went live for the Ministry of Health’s (KKM) daily press conference, we saw him sporting a face shield in addition to being double-masked.

Previously in May, he advised us to start practising double masking so that we are more protected as it creates layers to filter out particles.

Pushing for the usage of face shields

On 23 August, he took to his Twitter account to talk about how we should add another layer, a face shield. In his first tweet, he said:

“Face masks & face shields could help prevent community transmission when physical distancing & stay-at-home measures are relaxed or no longer possible.”

He elaborated by saying that these barriers along with hand hygiene & avoiding the practice of touching your face can help stop airborne respiratory droplets from reaching you.

Woman In Supermarket Mask Face Shield

Like this but with the face shield down!

He posted a second tweet, mentioning that face shields should be part of the strategy to reduce transmission of Covid-19 in the community as it can be “quickly and affordably produced”.

His third tweet brought it home with a surprising statistic that we weren’t aware of:

“The usage of a face shield with double masks can give up to 96% of protection from the Delta variant that is dominant in our country.”

Previous studies reaffirm the success rate

According to a study done in 2014 by Lindsley et. al, an experiment was conducted by using a coughing patient simulator and a breathing worker simulator. Through that experiment, an influenza-laden cough aerosol with a volume median diameter (VMD) of 8.5 μm was used and the usage of only a face shield managed to reduce exposure by 96% and reduce the surface contamination of the respirator by 97%. 

However, an aerosol with a smaller VMD (3.4 μm) was used and this time, the face shield managed to block only 68% of the cough and reduce the surface contamination by 76%. How does this affect Covid-19 transmission rates? Well, a study by Lee Byung Uk in 2020 revealed that Covid-19 can be found in a respiratory particle of 4.7 μm. Hence, even with a smaller VMD, wearing a face shield would still be able to reduce surface contamination by quite a large percentage. 

Dr Noor Hisham Double Mask Face Shield

In the experiment by Lindsley et al., they also manipulated the distance variable which showed that physical distancing can help reduce exposure to particles. In conclusion, they say that face shields are useful for workers caring for patients with respiratory infections but they should not be substituted for respiratory protection (eg. face masks) when needed. 

Hence, we do believe that the combination of double masking and using a face shield will provide adequate protection against the transmission of the virus! 

 

Also read: Here’s When & Why You Should Practice Double Masking

Pjimage 31 1


Follow us on Facebook, Youtube, Twitter, and Instagram for the latest stories and updates daily.



Just In

7 003 7 003
News8 hours ago

UPDATE: At Least 174 Killed in Crowd Stampede After Violence At Football Match in Indonesia

Violence broke out at an Arema and Persebaya Surabaya League 1 football match at a stadium in East Java, claiming...

Blood 1 Blood 1
News9 hours ago

Digital Blood Donor Card Now Available On MySejahtera & Can Be Added To Apple Health

According to Health Minister Khairy Jamaluddin, the digital blood donor card is now available on the MySejahtera application. In his...

Ft Claw Ft Claw
News9 hours ago

Indonesia Declares That Claw Machines Are Haram as it is The Same as Gambling

What appears to be a simple game to play where you test your luck in hopes of winning a prize...

1 003 1 003
News1 day ago

UMNO Leaders Want Dissolution Of Parliament, No Matter What!

UMNO leaders have confirmed that they want the dissolution of Parliament to take place this year, but whether or not...

2 007 2 007
News1 day ago

Zahid Says Flood Concerns Are A ‘Myth’, BN Ready For GE

Following UMNO’s consensus on dissolution of Parliament and a call for GE15 in the nearest time, UMNO President Datuk Seri...

Ft Umno Ft Umno
News1 day ago

Tajuddin & Alor Setar UMNO Chief Face 6 Year Suspension by Party For Going Against Leadership

It has just been reported that Member of Parliament for Pasir Salak, Datuk Seri Tajuddin Abdul Rahman and Alor Setar Division...

Feat Image Umno Supreme Council Ge15 Feat Image Umno Supreme Council Ge15
News1 day ago

UMNO Wants GE15 This Year, Ismail Sabri Will Propose Parliament Dissolution Date To Agong Soon

General Election 15 (GE15) is likely to take place this year as UMNO Supreme Council yesterday announced that it has...

Ft Fire Ft Fire
News2 days ago

M’sian Lecturer Who Asked His Students to Fill Up Inappropriate Sexual Survey Gets Fired by Uni

Last month, a former student of a local university in Johor shared the traumatic experiences she had with her former...

Announcement

Latest Videos



TRENDING TODAY