3M 5N11 10PCS Filter Cotton & 2PCS 501 Filter cover N95 Particulate Filter for Gas Mask Respirator Use with 6000 Series Filter Cartridges

Features: Can only be used with 501 filter retainer and 6000 Series Filter Cartridges. It can filter all kinds of non-oily particles, but it is not suitable for filtering radiation and high-toxic particles. Made of microfiber, effectively keeping you away from dust and particulates. Effective, giving you a better working environment. Helps provide respiratory protection. Specifications: Brand: 3M Model Number: 5N11 + 501 Defense Objects: Non-oily particles Material: Fiber Protective Grade: N95 Color: White              Package List: 10 * Filter Cotton 2 * Filter cover