Theia Visor is an innovative, photochromic protective visor developed for professional users in construction, industry and infrastructure. The visor remains clear when working indoors and in overcast conditions, and automatically darkens when exposed to sunlight to provide effective sun protection. When light conditions change, it returns to a clear state fully automatically. The transition between clear and dark takes up to two minutes and eliminates the need to change visors depending on weather or work environment. This smart visor provides freedom of movement, convenience and constant visual protection throughout the working day. Theia Visor is certified according to the latest eye protection standard, EN ISO 16321-1:2022+A1:2025, ensuring a high level of protection, optical quality and reliability in demanding environments. For increased comfort and functionality, the visor is equipped with an integrated drip guard that effectively prevents rainwater from running behind the visor. This improves visibility, enhances safety and increases working comfort during outdoor use. Theia Visor is specifically designed for Guardio helmets and is fully compatible with Armet, Armet Volt and Armet Pro. The visor is supplied with Guardio’s new mounting system, making installation faster, easier and more user-friendly than previous generations of protective visors. A well-designed, modern visor for professionals who demand the right protection in all light conditions.