N95 masks are specialized respiratory protective devices designed to filter out at least 95% of airborne particles, including large respiratory droplets and smaller aerosols. They are commonly used in healthcare settings and during public health emergencies to reduce the risk of infection from viruses and bacteria. These masks fit snugly against the sides of the face, creating a tight seal that prevents unfiltered air from being inhaled. Unlike regular surgical masks, N95 masks are designed to provide a higher level of protection, making them essential for healthcare workers and individuals in high-risk environments.