NP
I did not know the damage parameters, but after the code you see about 8 pairs of zeros in those 8 pairs are the damage and fully reapired status.
So if the Gas Mask is normally 300/300 since we/I did not know we couldnt put it in there, it really wont go down, if I recall.
Example you could go back in your save game now and look up Gas Mask and see the status you repair it to or alter it.
Good luck.