Premium particulate respirator offers N99 protection for applications such as welding, metal pouring, torch cutting and brazing. Softspun? liner adds durability and comfort. Dura-Mesh? shell holds up in extreme heat and humidity. Contoured faceseal and molded nose bridge deliver enhanced comfort, particularly during extended periods of wear. Respirator Type: Half-Face Mask; Rating: N99; Valved: Yes; Size: One Size Fits All.