Finished work on my Operation Raccoon City HUNK mask. I have retired my RE:4 Version of the mask and recently sold it. This is the 3rd version of HUNK's mask i've built now. I'm very happy with it. It is the product of several hours in the workshop/garage with tinsnips, an angle grinder and a hacksaw!
The gas mask filter was too bulky so remodded it to a more accurate slimline profile. Added a 40mm thread and reattached.