KN95 Masks: What You Need to Know

Introduction

KN95 masks are a type of respiratory protective equipment (RPE) that is designed to filter out airborne particles. They are similar to N95 masks, but they are not regulated by the National Institute for Occupational Safety and Health (NIOSH). KN95 masks are commonly used in China and other parts of Asia, and they have become increasingly popular in the United States during the COVID-19 pandemic.

How do KN95 masks work?

KN95 masks work by filtering out airborne particles through a series of layers of non-woven fabric. The outermost layer is a water-resistant layer that helps to block large droplets. The middle layers are made of melt-blown polypropylene, which is a type of plastic fiber that is very fine and porous. The melt-blown polypropylene layers are responsible for trapping particles of all sizes, including bacteria, viruses, and pollen. The innermost layer is a soft layer that is designed to be comfortable against the skin.

How effective are KN95 masks?

KN95 masks are very effective at filtering out airborne particles. In laboratory tests, KN95 masks have been shown to filter out at least 95% of 0.3 micron particles. 0.3 microns is the size of the majority of airborne particles, including viruses and bacteria.

Are KN95 masks FDA approved?

KN95 masks are not FDA approved, but they have been authorized for use in the United States under an Emergency Use Authorization (EUA). The EUA allows the FDA to authorize the use of medical devices that have not been fully approved by the FDA during a public health emergency.

How to choose the right KN95 mask

When choosing a KN95 mask, it is important to consider the following factors:

• Fit: The mask should fit snugly against your face without any gaps. You should be able to talk and breathe easily while wearing the mask.
• Comfort: The mask should be comfortable to wear for extended periods of time.
• Certification: Choose a mask that is certified by a reputable organization, such as the China National Accreditation Service for Conformity Assessment (CNAS).

How to wear a KN95 mask properly

To wear a KN95 mask properly, follow these steps:

• Wash your hands with soap and water.
• Place the mask over your nose and mouth.
• Hook the ear loops over your ears.
• Pinch the nose clip to create a snug fit.
• Check for gaps around the edges of the mask.

How to care for a KN95 mask

KN95 masks are disposable masks. This means that they should be replaced after each use. If you need to store a KN95 mask for later use, place it in a clean, dry bag.

Conclusion

KN95 masks are a type of RPE that is designed to filter out airborne particles. They are very effective at filtering out particles of all sizes, including bacteria, viruses, and pollen. KN95 masks are not FDA approved, but they have been authorized for use in the United States under an EUA. When choosing a KN95 mask, it is important to consider the fit, comfort, and certification. To wear a KN95 mask properly, place the mask over your nose and mouth, hook the ear loops over your ears, pinch the nose clip to create a snug fit, and check for gaps around the edges of the mask. KN95 masks are disposable masks and should be replaced after each use.