The phrase refers to the process of ensuring an N95 respirator forms a tight seal on an individual’s face, conducted at a location easily accessible to the person seeking the service. The purpose is to confirm that air is drawn through the filter material of the mask, rather than leaking around the edges. As an example, someone searching for this service might be a healthcare worker required to wear an N95 mask for protection against airborne pathogens.
Achieving a proper fit is crucial for the effectiveness of the respirator. Without it, contaminants can bypass the filter, negating the mask’s protective capabilities. The need for this testing became particularly pronounced during the COVID-19 pandemic, highlighting the importance of respiratory protection for frontline workers and the general public. Historically, fit testing was primarily associated with occupational safety in industries with airborne hazards. However, its relevance has expanded significantly in recent years due to public health concerns.
