This mask is designed for emergency evacuation and rescue in case of hydrogen sulfide leakage at hazardous production facilities. The NH15-K hood has a shelf life of 5 years and provides a high level of respiratory, eye and face protection for at least one hundred minutes at hydrogen sulfide concentrations in the air up to 5,000 ppm. Manufactured from a transparent material that protects the face from direct vapors and liquid splashes and provides excellent visual communication during evacuation. Dual low-profile filters on a unique hinge system feature the latest filter system to reduce breathing resistance, while a front reflector makes it easier to identify personnel in low light conditions.