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New study questions the effectiveness of masks against .

A new study from South Korea has found that both surgical and reusable cotton masks are ineffective in stopping the spread of SARS-CoV-2. Newsletter Written by Maria Cohut Ph.D. on April 13, 2020 .

Study: Masks Fail to Filter Virus in Coughing COVID-19 .

A small study from South Korea cast doubt on the ability of surgical or cotton face masks to effectively prevent dissemination of COVID-19 coronavirus from the coughs of infected patients.

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Our company, KM Healthcare Copr., is qualified manufacturer and distributor for medical supplies in Korea since 1995. Our main items are disposable surgical gowns & drapes that meet strict standard from CE, KGMP. We have also other items such as Wound care products, Masks, Caps, Dental materials, etc.

What Makes a Surgical Mask Different? How to Tell if a .

An N95 surgical mask is an enhanced reusable face mask that combines N95 respirator and an ordinary surgical mask. Most of the fashion masks made from washable cotton or sponge are reusable, they are mainly designed for air pollution or pollen allergy, but useless against viruses and bacteria.

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Types of Face Masks to Keep Out of Coronavirus .

One of the myths about face mask is whether it should be a surgical mask or a mask like N95 (9 particulate protection certification). In fact, N95 is mainly for health care workers so the price is also a lot higher than surgical masks. For prevention of coronavirus infection, surgical masks should be enough to meet your needs.

DIY Cloth Face Mask : 9 Steps (with Pictures) - Instructables

Second, because gaps around the masks and between the fibers in the masks, even in commercial surgical masks, are too large to block all viruses. Sneeze and cough droplets are usually between 7 and 100 microns. Surgical masks and some cloth masks will block 7 micron particles but the COVID19 virus particles are 0.06 to 0.14 microns.

Coronavirus: How to Choose the Right Surgical Masks

Wellsamed is a German brand manufacturing masks for both adults and kids that meet the EN14683 standard. You can purchase their masks at Amazon.. For Asian manufacturers from Japan, Korean (KF94 .

Effectiveness of Surgical and Cotton Masks in Blocking .

Lee and colleagues showed that particles 0.04 to 0.2 μm can penetrate surgical masks. The size of the SARS–CoV particle from the 2002–2004 outbreak was estimated as 0.08 to 0.14 μm ; assuming that SARS-CoV-2 has a similar size, surgical masks are unlikely to effectively filter this virus.

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