Face Protection Safety Signs Are Important In a variety of environments, such as mines, workshops, or construction sites, the Face Protection Safety Sign is used to alert employees and visitors to the need for face protection, such as face shields, particularly when performing operations like welding. Wearing the face protection is required. Sign of Safety. This necessary sign states that when welding, safety goggles must be used. This sign is frequently used to let employees or guests know what P.P.E. is required when entering a mine, construction site, or even a workshop. Respect for Regulations These signs make sure that people abide by stringent laws and occupational health and safety rules by indicating a required safety precaution that must be followed inside a specific area. Increasing Consciousness Safety Face Protection Signs contribute to overall workplace safety by raising awareness of the necessity of wearing appropriate personal protective equipment (PPE), such as face shields.