Full face respirator for air-purifying, supplied-air and powered air-purifying needs. Precision crafted to cover a wide variety of respiratory applications, our advantage 4100 facepiece works with several different MSA respirators to provide comfortable, cost-efficient performance. The facepiece is compatible with several MSA respirator models, including air-purifying respirators, supplied-air respirators and powered air-purifying respirators. Available in both silicone and Hycar, this unit comes in three standard sizes for a snug fit. The facepiece also features a rubber or net harness and every mask features a standard nosecup for reduced fogging in low-temperature or high-moisture environments.