MSA M8 Positive Pressure Firefighting Air Respirator. Product advantages of the MSA 10242202 Medium Mesh Headband G1 Full Facepiece: High fidelity, wide field of vision; lightweight design for greater portability and comfort; recessed design to reduce impact and improve weight distribution; non-uniform cross-section lens to minimize visual distortion and avoid lens impact; airflow guidance design to prevent lens fogging and reduce breathing resistance; improved overall contour design for better fit and comfort; resistant to high-temperature flames of 950±50°C, capable of withstanding harsh usage conditions.