Features Very high filtration mask Single use Splash resistant Ultra lightweight (less than 6g) Hypoallergenic Material: soft, non-woven polypropylene Available with ties or elastic loops Adjustable nose bar Dispenser box for perfect hygiene Pack of 50 Technical Specification Class: Type IIR Bacterial filtration efficiency (BFE): 98% Flat dimensions: 175 x 95 mm ( /- 2mm) Thickness: 2mm Weight: 3.2g Usage: Single Use Compliant Standard: NF EN 14683: 2019 / ISO 22609:2004 Pack Quantity: 50 Case Quantity: Case of 20 (ties) / Case of 40 (elastic loops)