How Many Layers Is Your Face Mask?

FRIDAY, July 24, 2020

When it comes to selfmade experience masks, two or three levels of material is greatest, scientists say.

That’s what you need to keep droplets from your nose and mouth from spreading the virus, the Australian researchers identified.

Many kinds of product have been suggested for earning masks, but you will find little or no evidence of how helpful they are, the group pointed out.

For the research, the scientists in contrast solitary- and double-layer cotton experience masks (with a thread depend of a hundred and seventy per inch) with a 3-ply surgical experience mask.

The solitary-layer mask was designed from a folded cotton T-shirt and the double-layer mask was designed applying the sewing technique advised by the U.S. Centers for Condition Regulate and Avoidance.

The conclusions ended up released on line July 23 in the journal Thorax.

A video recording showed that the 3-ply surgical mask was the most helpful, but even a solitary-layer mask lessened the spread of droplets.

And the double-layer mask was far better than a solitary-layer mask, the scientists reported in a journal information release.

Effectiveness might also depend on other things, together with the product employed, design and fit, and how normally the mask is washed, in accordance to C. Raina MacIntyre, of the Biosecurity Exploration Application at the Kirby Institute at University of New South Wales, and colleagues.

“Recommendations on residence-designed cloth masks really should stipulate numerous levels,” the scientists concluded. “There is a need for much more evidence to advise safer cloth mask design, and countries really should guarantee suitable producing or procurement of surgical masks.”

— Steven Reinberg

Copyright © 2020 HealthDay. All legal rights reserved.

References

Resource: Thorax, information release, July 23, 2020