Why are N95 masks important?

What is N95 mask ?In recent ,because of the  COVID-19, we are more and more familiar with N95 masks. We often hear news media talking about the need to wear N95 masks. But what is N95 mask exactly? Why are N95 masks so important?

The N95 mask is one of nine types of respirators approved by NIOSH (The National Institute for Occupational Safety and Health) to protect against particulate matter. N stands for not resistant to oil. “95” means that the concentration of particles inside the mask is more than 95% lower than the concentration of particles outside the mask when exposed to the specified amount of special test particles. 95% is not an average, it’s a minimum. N95 is not a specific product name, as long as the product meets the N95 standard and passes the NIOSH inspection, it can be called N95 mask. The protection grade OF N95 means that the filtering efficiency of mask filter material to non-oily particles (such as dust, acid fog, paint fog, microorganism, etc.) reaches 95% under the testing conditions specified in NIOSH standard.

Why are N95 masks so important?The U.S. Department of Labor has recommended the use of N95 masks for health care workers to protect against airborne microbial diseases such as influenza and tuberculosis. Medical surgical masks are usually made of components such as masks, shaped parts and bands. They are generally made of nonwoven materials and can be isolated through filtration. It is used to wear at the mouth and nose of medical staff in the operating room to prevent dandruff and respiratory microorganism from spreading to the open surgical wound and prevent the body fluids of surgical patients from spreading to medical staff, thus playing a bidirectional biological protection role.Hospitals, clinics and dentists are required to use N95 masks.

People are advised to wear n95 masks as recommended by the CDC in case of infection.

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