‘Replaceable filters’ for N95 masks soon
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Researchers have developed a more efficient hydrophobic membrane filter that can be attached to a regular N95 mask and replaced when needed.

The filter has a smaller pore size than normal N95 masks, potentially blocking more virus particles, according the researchers from King Abdullah University of Science and Technology (KAUST) in Saudi Arabia.

N95 masks filter about 85% of particles smaller than 300 nm, they said. The researchers noted that SARS-CoV-2, the coronavirus that causes Covid-19 is in the size range of 65-125 nanometres (nm), so some virus particles could slip through these coverings.

Due to shortages, many health care workers have had to wear the same N95 mask repeatedly, even though they are intended for a single-use. To help overcome these problems, Muhammad Mustafa Hussain and colleagues wanted to develop a membrane that more efficiently filters particles the size of SARS-CoV-2 and could be replaced on an N95 mask after every use.

Source: https://www.acs.org/content/acs/en/pressroom/newsreleases/2020/may/replaceable-more-efficient-filter-for-n95-masks.html
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Interesting read!
May 24, 2020Like1