The 3M 9002 KN90 Particulate Mask is a high-quality, disposable mask designed to provide reliable respiratory protection. This mask features a headband design for a secure and comfortable fit. It is KN90-certified, which means it filters out at least 90% of airborne particles. The mask is suitable for use in a variety of environments and is sold in a convenient pack of 50. Please note that this mask is disposable and should be properly disposed of after use.