Which face mask to wear indoors to protect against Covid-19? A senior health official suggests

Health experts and researchers continue to recommend wearing face masks for personal protection against the Covid-19 virus even as countries struggle with the decision to issue mask mandates amid Covid-19 cases continue to fluctuate. Global health leader and epidemiologist Dr Tom Frieden said those worried about contracting Covid-19 infection while surrounded by others who are not wearing masks should consider switching to one. N95.

“If you are worried about catching Covid (medically vulnerable or otherwise) and you are indoors with other people who are not masked, consider switching to an N95. Cloth and surgical mask protect if all are wearing it, but if others are not masked, a properly fitted N95 is much more effective,” recommends Dr. Tom Frieden.

Earlier this month, it was announced that researchers had developed a new N95 face mask that can potentially reduce the spread of Covid-19 and also kill the SARS-CoV-2 virus on contact with it. Additionally, the mask is environmentally friendly because it can potentially be worn longer, resulting in less plastic waste because it doesn’t need to be replaced as frequently, the researchers said.

Edmund Palermo, of Rensselaer Polytechnic Institute in the US, said: “We believe this work is a first step towards more durable self-sterilizing personal protective equipment, such as the N95 respirator. This can help reduce the transmission of airborne pathogens in general. .”

According to research recently published in the journal Applied ACS Materials and Interfaces, the team successfully grafted broad-spectrum antimicrobial polymers onto the polypropylene filters used in N95 face masks.

The active filtration layers of N95 masks are very sensitive to chemical changes, the researchers said. The team, including researchers from the Massachusetts Institute of Technology (MIT) in the United States, attached antimicrobial quaternary ammonium polymers to the surfaces of nonwoven polypropylene fabric fibers using cell-initiated grafting. ultraviolet (UV).

The researchers said the process can be applied to already manufactured polypropylene filters, rather than requiring the development of new ones, the team saw a decrease in filtration efficiency when the process was applied directly to the layer filtration of N95 masks, but the solution is simple.

(With PTI entries)

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