Martian helmet

The Martian helmet was the helmet of the Ice Warriors' survival armour, supporting the head. Befitting the reptilian nature of the Ice Wariors, helmets sported the same pattern of thick scales. They also housed a heads-up display unit in their red eyepieces. For the Ice Lords, a augmented reality feed would inform them of everything about the subordinates in their sight including vital signs, combat performance, military history, and mental health. While their mouths generally remained exposed by the helmet's open mouth section, the faceplate was special section which when engaged was closed across the mouth, acting as both a space helmet and a respirator. (PROSE: The Jeopardy of Solar Proximity)