A joint research team from POSTECH and Japan’s Shinshu University evaluates the filtration efficiency of nanofiber and melt-blown filters when cleaned with ethanol.
- As the COVID-19 pandemic spreads around the world, masks have become an essential personal hygiene product as the first line of defense to protect one’s respiratory system against the viruses and germs that spread through droplets in the air. It’s a waste to dispose the masks after single use but troubling to reuse them. In light of this, a Korea-Japan research team recently released findings that compare and analyze the performance and functional differences of the filters used in masks after they are cleaned with ethanol.
- The filtration efficiency of the melt-blown filter decreased by up to 64% when cleaned with ethanol solution and reused. On the other hand, the filtration efficiency of nanofiber filters when reused 10 times through ethanol spray cleaning or immersion in ethanol solution for 24 hours maintained nearly consistent high filtration efficiency.
- Nanofiber filters have better breathability because they have much higher heat and carbon dioxide emission capabilities compared to the melt-blown filters. Biosafety tests using human skin and vascular cells also confirmed no cytotoxicity.
via Pohang University of Science and Technology | Shinshu University
The Latest Updates from Bing News & Google News
Go deeper with Bing News on:
- Don’t Stop Wearing A Face Mask Just Yet; COVID Is Still Very Much Around And So Is Pollutionon February 22, 2021 at 8:58 pm
You need to keep wearing masks when you are outdoors, to protect yourself and your family against COVID. But mind you, not all masks get the job done, and most certainly not those cheap fabric ones.
- ASTM International F3502-21 Compliant Mask Technology Opens Doors Letting Teachers and Kids Get 'Back to School'on February 22, 2021 at 5:39 am
The growing debate strengthens as teachers stand their ground against going back to school prior to getting vaccinated.
- 26 best reusable face masks you can buy online nowon February 18, 2021 at 1:25 am
Each mask also comes with two filters, which provide extra protection against polluted air particles. Ally's face coverings have nanofiber filters sewn into each mask, which blocks up to 95 per ...
- This Bamboo Face Mask 'Fits So Well, You Barely Feel It' — and Its Replaceable Filter Lasts Over 200 Hourson February 15, 2021 at 10:32 am
It includes a nose wire and adjustable earloops, as well as a filter made with nanofiber (synthetic fibers that are 1,000 times thinner than human hair). The mask's filter is water-resistant and ...
- Washable nanotech face mask in development to meet demand amid coronavirus pandemicon February 11, 2021 at 4:00 pm
Inside the mask is a thin nanofiber membrane that can filter 95 per cent of particles as small as 0.075 micrometers in diameter. The coronavirus is about 0.1 micrometres in diameter. Lesson plan ...
Go deeper with Google Headlines on:
Go deeper with Bing News on:
- Before Trump left office, FEMA OK’d exporting millions of N95 masks as workers cried for moreon February 23, 2021 at 4:16 pm
In the midst of a national shortage of N95 masks, the U.S. government quietly granted an exception to its export ban on protective gear, allowing as many as 5 million per month to be shipped overseas.
- Oakley finally designed a spectacle-friendly N95 mask that prevents your glasses from fogging upon February 23, 2021 at 1:30 pm
It’s obviously in Oakley’s best interests to make face-masks that accommodate spectacles! Considering that more than 75% of the human adult population wears spectacles, and that fogged glasses can be ...
- Demand for N95 masks alters protocols at York County hospitalson February 23, 2021 at 7:45 am
York County's hospitals are continuing to provide what are deemed; "ample" supplies of N95 masks to their employees — which in many cases means one per shift.
- Before Trump left office, FEMA OK’d exporting millions of N95 masks U.S. workers say they needon February 23, 2021 at 6:00 am
The Federal Emergency Management Agency issued a waiver, allowing a Texas company to export its products after it failed to secure U.S. customers, records show.
- Feds OK'd Export of Millions of N95 Masks as US Workers Cried for Moreon February 22, 2021 at 10:47 am
FEMA issued the waiver in the final moments of Donald Trump's presidency last month, allowing a Texas company to export its products after it failed to secure U.S. customers.