Never miss a story

Get subscribed to our newsletter


×
Photo by Vera Davidova on Unsplash

Each mask had one, two, or three layers of the same or different fabrics.

During the Covid-19 pandemic, cloth face masks became a way to help protect from the virus. For some people, they became a fashion statement, with many fabric choices available. But just how effective are they, especially in blocking respiratory droplets from a sneeze? Researchers from the University of New South Wales used high-speed videos of a person sneezing to identify the optimal cloth mask design.

The team made simple face masks with 17 commonly available fabrics. Each mask had one, two, or three layers of the same or different fabrics. A healthy 30-year-old volunteer donned each mask, tickled the inside of his nose with tissue paper on a cotton swab, and then readjusted the mask just before the onset of a sneeze.

Follow NewsGram on Facebook to stay updated.


The researchers captured high-speed videos of the sneezes and computed the intensity of droplets in the images in a region 2 cm from his mouth. With each fabric layer, the droplet-blocking capability improved by more than 20-fold. Interestingly, all of the three-layer cloth combinations the researchers tested were more effective than a three-layer surgical mask. The best masks for blocking droplets contained a hydrophilic inner layer of cotton or linen, an absorbent middle layer of a cotton/polyester blend, and a hydrophobic outer layer of polyester or nylon. The findings are detailed in the journal ACS Biomaterials Science & Engineering.

ALSO READ: mask not mask question us

Machine washing the masks didn't decrease their performance; in fact, masks containing cotton or polyester worked slightly better after washing because of pore shrinkage. Future studies are planned with more people and different age groups, said researchers including Shovon Bhattacharjee, from the UNSW. Face masks help reduce disease spread by blocking tiny, virus-laden droplets expelled through the nose and mouth when a person speaks, coughs, or sneezes. (IANS/JC)


Popular

Unsplash

Feminism itself is nothing but a simple movement that pursues equal rights for women (including transwomen) and against misogyny both external and internal.

"In India, to be born as a man is a crime, to question a woman is an atrocious crime, and this all because of those women who keep suppressing men in the name of feminism."

Feminism, a worldwide movement that started to establish, define and defend equal rights for women in all sections- economically, politically, and socially. India, being a patriarchal society gives a gender advantage to the men in the society thus, Indian feminists sought to fight against the culture-specific issue for women in India. Feminism itself is nothing but a simple movement that pursues equal rights for women (including transwomen) and against misogyny both external and internal. It states nowhere that women should get more wages than men, that women deserve more respect than men, that's pseudo-feminism.

Keep Reading Show less
wikimedia commons

Yakshi statue by Kanayi Kunjiraman at Malampuzha garden, Kerala

Kerala is a land of many good things. It has an abundance of nature, culture, art, and food. It is also a place of legend and myth, and is known for its popular folklore, the legend of Yakshi. This is not a popular tale outside the state, but it is common knowledge for travellers, especially those who fare through forests at night.

The legend of the yakshi is believed to be India's equivalent of the Romanian Dracula, except of course, the Yakshi is a female. Many Malayalis believe that the Yakshi wears a white saree and had long hair. She has a particular fragrance, which is believed to be the fragrance of the Indian devil-tree flowers. She seduces travellers with her beauty, and kills them brutally.

Keep Reading Show less
Pinterest

Ancient India not only made mentions of homosexuality but accepted it as well.


The LGBTQ+ acronym stands for Lesbian, Gay, Bisexual, Transgender, Queer, and others. In India LGBTQ+ community also include a specific social group, part religious cult, and part caste: the Hijras. They are culturally defined either as "neither men nor women" or as men who become women by adopting women's dress and behavior. Section 377 of the India Penal code that criminalized all sexual acts "against the order of nature" i.e. engaging in oral sex or anal sex along with other homosexual activities were against the law, ripping homosexual people off of their basic human rights. Thus, the Indian Supreme Court ruled a portion of Section 377 unconstitutional on 6th September 2018.

Keep reading... Show less