Your face mask should ideally have 3 of them, say experts
New guidelines say that this is what your mask must provide the best defense against COVID.
It is widely agreed by medical experts and government officials who carry a facial mask when you are in public or near others is aEffective method of slowing the propagation of COVID-19. This may be somewhat less common knowledge is variable protection levels - or, in some cases,the total lack of this one-The argument by the different types of masks used. Provide some clarity in this regard, the Association of American Medical Colleges (AAMC)released a set of directives For when, where and which masks are most effective. Among their recommendations, the AAMC advises that if you want the most lasting defense against the virusYour fabric face coating should ideally have three protective layers.
According to the AAMC, studies have shown that a two-layer fabric cover was significantly better than a monolayer mask when it comes to limiting the propagation of the droplets expelled by coughing and sneezing, but has Specifically noted that the use of one who has three layers has three layers "as far as possible" is even better. And research recently published in the newspaperAdvanced SciencevaluedSupports the recommendation of the AAMC. AfterTest 14 different masks' ability to block respiratory dropletsThe teachers at Duke University found that, except for the N95, which should be reserved for first-line medical workers, a three-layer surgical mask allowed at least droplets to obtain by its barrier. Come in third? A three-layer mask with polypropylene in filter form between two cotton layers.
In another study published in the newspaperThorax, a team of Australian researcherscame to the same conclusionBy stating that their results indicate that a home-made fabric face mask requires a minimum of two layers to be effective for blocking viral droplets, but three layers are highly preferable.
The AAMC guidelines also reported that Bandanas and other loosely folded fabric coatings offer the least protection, but are better than no facial mask. In addition, they emphasized the importance of wearing a facial mask when they are inside, as well as in almost all external situations where other people are around.
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"These guidelines are supposed to provide all members of the country with a unified approach to facial masks and correctly conflicting messaging and misinformation,"Aul Grover, MD, PhD, Executive Director of the AAMC Research and Action Institute, stated in a declaration. "Until we develop a vaccine and better therapeutics, prevention is the key to reducing the impact of this pandemic. Faster We make face blankets our" new normal ", the more we can take the Check on Covid-19. " And to slow down the propagation of coronavirus,This new COVID defense is "more efficient" than your mask, called scientist.
