Udayavni Special

Scientists identify best material for making homemade masks to prevent COVID-19 spread


PTI, Jul 1, 2020, 2:41 PM IST

New York: Scientists have experimented with non-medical grade masks, and found that well-fitted ones made from stitching two layers of quilting cotton fabric are the most effective in stopping the spread of cough and sneeze droplets, whereas bandana-style coverings “had little to no effect.”

The study, published in the journal Physics of Fluids, used a laser to map out the paths of droplets as they were coughed and sneezed out of a mannequin head, and examined how different mask designs and materials altered these paths.

While the use of face masks is widely recommended by public health officials during the COVID-19 pandemic, relatively few specific guidelines pertaining to mask materials and designs are available, according to the researchers from Florida Atlantic University in the US.

“While there are a few prior studies on the effectiveness of medical-grade equipment, we don’t have a lot of information about the cloth-based coverings that are most accessible to us at present,” said Siddhartha Verma, a co-author of the study.

“Our hope is that the visualisations presented in the paper help convey the rationale behind the recommendations for social distancing and using face masks,” Verma said.

In the study, the scientists found that loosely folded face masks, and bandana-style coverings had little to no effect on stopping droplet jets. They said well-fitted homemade masks with multiple layers of quilting fabric, and commonly available cone style masks proved to be the most effective.

“Some leakage notwithstanding, these masks reduced the number of droplets significantly,” the researchers noted in a statement to the press.

When without a mask, the scientists said, the mannequins were projecting droplets much farther than the six feet recommendation of social distancing guidelines.

“It is also important to understand that face coverings are not a 100 per cent effective in blocking respiratory pathogens,” Verma said.

“This is why it is imperative that we use a combination of social distancing, face coverings, hand-washing and other recommendations from health care officials until an effective vaccine is released,” he added.

Top News

Will address grievances of MLAs: Rajasthan CM

COVID-19 cases dip below 55,000; recovery rate rises to 69.80 pc

Karnataka govt issues revised guidelines for home isolation of COVID-19 patients

BCCI gets govt approval for IPL In UAE

GoAir told to pay daily to use AAI airports from August 11

Former president Pranab Mukherjee undergoes brain surgery at Army’s RR hospital

K’taka COVID-19 update: 4267 new cases; 5218 discharges; 114 deaths on Aug 10



Related Articles More

COVID-19 cases dip below 55,000; recovery rate rises to 69.80 pc

Gargling with mouthwashes might lower spread of COVID-19, scientists say

Dakshina Kannada district tops in quarantine surveillance

Karnataka govt issues revised guidelines for home isolation of COVID-19 patients

K’taka COVID-19 update: 4267 new cases; 5218 discharges; 114 deaths on Aug 10

MUST WATCH

Karnataka SSLC Results 2020 Declared | Udayavani

Belthangady : A massive landslide near Mittagabilu village

SSLC results: Nidhi Rao from DK dist amongst second toppers in state

Dr. Dhananjay KVK | Narendra Modi words about Agriculture | Highlights

Ravi Karkala | How to Cultivate Good Quality Mushroom | Udayavani

Latest Additions

Shimoga: Actor Vijay Raghavendra’s car filled with wrong fuel

Brahmagiri landslide: Two cars dug out; search ops continues

Producer reveals he spoke to Sushant day before his death

Will address grievances of MLAs: Rajasthan CM

The Kargil Girl-Gunjan Saxena: The story of first woman IAF officer to fly in a combat zone

Thanks for visiting Udayavani

You seem to have an Ad Blocker on.
To continue reading, please turn it off or whitelist Udayavani.