DEWALT FFP3 Disposable Respirators are for protection against fine dust and liquid aerosols. They have a lightweight, cup shaped design which provides a secure and comfortable fit. 4 point adjustable head straps provide easy adjustment and better fit. The soft foam inner face seal improves user comfort. A preformed nose bridge removes the need for regular adjustment. The front exhalation valve reduces breathing resistance for greater comfort. Specifications: Respirator Size: Adjustable.Filter Type: P3 Particulate.Filter Efficiency: 99.99% @ 0.3 Micron.Approval & Certification: EN 149:2001+A1 2009, CE 2797, UKCA 0086.