The N95 filter mask has a 95% particle filtering capacity

The N95 filter mask has a particle filtering capacity of 95%, while the FFP2 masks have a filter capacity of 92%.

Filter masks, also called respirators, are an individual protection device used on the face or head and that covers at least the nose and mouth (1,2).

Unlike surgical masks, filter masks are specifically designed to provide respiratory protection to the user, creating an airtight seal against the skin and not allowing dangerous particles present in the environment, such as gases, vapors, aerosols and infectious agents (3).

Before use, it is necessary to perform an adjustment test to ensure that an adequate facial seal is achieved. When properly adjusted and the user inhales, there is minimal leakage at the edges of the respirator. This means that almost all of the air is directed through the filter, thus ensuring its effectiveness in reducing the risk of inhaling dangerous particles in the air.

The N95 filter mask is certified by the National Institute of Occupational Safety and Health (NIOSH) of the United States of America, with a filtering capacity of 95%. Masks with individual protection filters (FPP2), according to the European Union standard EN 149, have a filtering capacity of 92%. (2)