The IRUDEK's V210 SLV FFP1 series auto-filtering cup style masks are suitable for FFP1 particles. They feature a exhalation facilitation valve, are comfortable, and enable good communication without understanding errors. They have two elastic head bands made from latex, that are sewn to the outer mask surface. They also have a nose clip and inner polyurethane padding, furthermore increasing the adjustment and comfort levels. Ten pieces are delivered in one box.