This is a set of semi-transparent ( PNG format ) files, titled GAS MASK HUD and serve for the intermediate/ advanced level creators in any  Engine  use in games with gas mask,  BioHazard Doomsday  style HUD.The set of files contains everything from the simple mask to the models with the lens cracked and with blood on it. 

The HUD has an aesthetic cracked and dirty glass type with some breathing fog Contains 25 different files and the resolution is 

Contains also 2 sound effects (wav file ) of glass visor  breaking and cracking
1920x1200 px 72dpi per image  file