The Stanley Disposable Sanding and Grinding Respirator Mask is a N-class filter for solid and liquid particulates, excluding oils. Protect yourself from hazardous on-the-job irritants with the disposable face mask. This lightweight, disposable respirator mask filters out non-oil based particulates such as dust, sawdust and allergens to keep you safe while you work. Whether you're sanding, sweeping, grinding or woodworking, this humidity-resistant disposable respirator mask is designed to perform comfortably in most environments, and its latex-free filter media provides lower breathing resistance. An adjustable nose bridge and one-size-fits-most sizing ensure this versatile disposable respirator mask will work for everyone on the jobsite.