The RHINO Safety DM-400 Particulate Respirator Mask Pack of 20 features adjustable nose clips and straps, meets the FDA standards for the N95 rating, and is approved by the NIOSH. Vertical design folds flat for easy storage, reducing the size of the 20-piece carton. In addition to a secure fit, the adjustable nose and straps help ensure a tight seal, filtering out dust and other particulates for increased safety in residential or commercial construction environments.