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What types of masks are used against the spread of COVID-19?

What types of masks are used against the spread of COVID-19?

Medical masks (also known as surgical masks): these are made from a minimum of three layers of synthetic nonwoven materials, and configured to have filtration layers sandwiched in the middle. These masks are available in different thicknesses, have various levels of fluid-resistance and two levels of filtration. These medical masks reduce the respiratory droplets from the wearer to others and to the environment. They also prevent transmission of the virus from others to the wearer.

Hands should be cleaned with alcohol-based hand rub or soap and water before putting on a clean mask and after removing the mask. These masks should be worn tightly on the face. The wearer should avoid touching the mask while it is on the face and the mask should be immediately discarded if it becomes moist. Importantly, wearing a mask must be combined with other preventive measures including performing frequent hand hygiene and physical distancing of at least 1 metre.

Respirators (also known as filtering facepiece respirators - FFP) and available at different performance levels such as FFP2, FFP3, N95, N99): these are specifically designed for healthcare workers who provide care to COVID-19 patients in settings and areas where aerosol generating procedures are undertaken. Healthcare workers should be fit tested before using a respirator to ensure that they are wearing the correct size.

Non-medical masks (also known as fabric masks, home-made masks, DIY masks) can act as a barrier to prevent the spread of the virus from the wearer to others.

They can be purchased commercially or handmade, and are generally not standardized like medical masks. There are numerous types of fabric masks, they should cover the nose, mouth, and chin and be secured with elastic loops or ties, include multiple layers, be washable and reusable.

Remember, the use of a fabric mask alone is not sufficient to provide an adequate level of protection. Maintain a minimum physical distance of at least 1 metre from others, frequently clean your hands and continue to avoid touching your face and the mask.

WHO will be referring to non-medical masks as fabric masks.

categories : Face Masks

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