Facemasks can be classified into various categories based on their intended use, design, and level of filtration. Here are some common classifications of facemasks:
1.Surgical Masks: Surgical masks are loose-fitting disposable masks that are typically used by healthcare professionals during medical procedures. They are designed to protect the wearer from large droplets, sprays, and splashes that may contain pathogens. Surgical masks are not designed to provide a tight seal and do not offer as high a level of filtration as respirators.
2.Respirators: Respirators, also known as filtering facepiece respirators (FFRs), are masks designed to protect the wearer from inhaling hazardous airborne particles, including fine particles and infectious agents. Respirators provide a higher level of filtration compared to surgical masks and are used in healthcare settings, industrial environments, and other situations where respiratory protection is required. They are available in different levels of filtration efficiency, such as N95, N99, and N100 respirators, which filter out at least 95%, 99%, and 99.97% of airborne particles, respectively.
3.N95 Masks: N95 masks are a specific type of respirator that meets the National Institute for Occupational Safety and Health (NIOSH) standard for filtering out at least 95% of airborne particles, including small particles (0.3 microns in diameter) that can be inhaled. They are widely used in healthcare settings and are also used by the general public during situations of respiratory illness outbreaks or high levels of air pollution.
4.Cloth Masks: Cloth masks, also known as fabric masks or homemade masks, are made of fabric materials such as cotton or polyester. They are typically reusable and can be washed. Cloth masks provide a barrier to respiratory droplets and can help reduce the transmission of infectious agents, especially when combined with other preventive measures like physical distancing and hand hygiene. However, their level of filtration varies depending on the fabric type and construction, and they may not offer the same level of protection as surgical masks or respirators.
It's important to note that the classification and terminology of facemasks can vary across regions and organizations. It is recommended to follow the guidelines and recommendations of local health authorities or regulatory agencies regarding the appropriate use and selection of facemasks for specific situations.
