A full face mask is one of the types of respiratory equipment. which is used as one of the types of protective masks. This mask has unique features; which distinguishes it from other types of masks. One of the most important and outstanding features of a full face mask is the complete coverage of people's faces. This type of respiratory equipment, in addition to covering the nose and mouth; It also protects the eyes. By covering the user's nose, mouth and eyes, this type of mask can; Provide more protection against pollution factors and environmental hazards. The full face mask is capable of using advanced filtration systems; Effectively prevent the penetration of small particles and contaminated materials into the respiratory system. Different filters in these masks can; Provide better performance based on the type of pollution, including suspended particles, harmful vapors and gases. This is one of the important advantages of breathing equipment.