Anti-spatter fittings are specialized pneumatic or fluid components designed to resist the adhesion of molten metal droplets (spatter) and sparks common in welding environments. They typically feature a hybrid system of brass and flame-retardant resins, such as UL94 V-0 rated materials, or nickel-plated brass fittings with protective covers to prevent sparks from entering and release rings from malfunctioning due to debris build-up.