It does not remove the black and white state, even after map change you can die directly. Yes it removes the color correction and sound but this is it.
Using Recreator version, I have enter on a saferoom with 86 HP, and this plugin reduced it to 50. It has happened to me on a custom map where I can recover life with herbs, resident evil style. However, it should not happen, because it is permanent life, green life...
set cvar "saferoom_naps_health"(from this plugin) and "z_survivor_respawn_health"(from game) to the same value, then whether it's on map transition or respawn by saferoom, will get same health.
but respawn health of defibrillator/rescue also fixed to "z_survivor_respawn_health", so use Simple Custom Respawn Health of Defibrillator/Rescue to custom them.