The 3M 1860 N95 Particulate Respirator Face Mask is a high-quality and widely used face mask designed for medical, lab, and dental professionals. With a filter efficiency rating of 95%, this mask offers reliable protection against airborne particles and contaminants. The 20 pack ensures that users have an ample supply for extended periods of time, making it ideal for those working in demanding environments where safety and protection are crucial. Trusted for its durability and effectiveness, the 3M 1860 N95 face mask is a popular choice for professionals in various industries.