string door = "[HANG]";
string vent = "[VENT]";
string light = "[LIT]";

public void Main() {

    var lights = new List<IMyLightingBlock>();
    GridTerminalSystem.GetBlocksOfType(lights, l => l.CustomName.Contains(light));

    var vents = new List<IMyAirVent>();
    GridTerminalSystem.GetBlocksOfType(lights, l => l.CustomName.Contains(vent));

    var doors = new List<IMyAirtightSlideDoor>();
    GridTerminalSystem.GetBlocksOfType(lights, l => l.CustomName.Contains(door));

    foreach (IMyLightingBlock lit in lights)
            {
                lit.ApplyAction("OnOff") ;
            };

    foreach (IMyAirVent v in vents)
            {
                v.ApplyAction("Depressurize") ;
            };


}