• Fixed an error when dropping a gas mask or dying with it.
  
• Fixed the filter's duration migrating from mask to mask.
  
• Added support for different breath sounds as the filter is expiring.
  
• Added a visual and sound cue for when the filter is about to run out. Can be disabled.
  
• If your mask's model has skins for a shattered visor, you can now change those too.
  
• The filter ammo pickup is now a more reasonable size.

Fixed the mask being taken off when someone else puts it on. Courtesy of Gost Nava.

Appearance:

• Fixed Bio-Annihilation 2 overriding the mask's screen overlay and third person model.

• Your filter ammo count is now (mostly) synchronized with BA2's filter count.

• Fixed an error when putting the mask on in multiplayer with JMod.

Fixed filter having 0 durability when Bio-Annihilation II is active.

-Added standalone Bio-Annihilation II support.

-Added inventory icons for nZombies Rezurrection.

-Potentially fixed only the "take off" animation playing in nZombies.

-Fixed the breath sound playing twice in multiplayer.

-Added support for JMod (and by extension Chemical Warfare and Bio-Annihilation).

-Filters now expire by being exposed to contaminants instead of after a fixed amount of time.

Note: Sorry for changing the base so drastically and so often, I'm trying to adapt to the stuff I'm making this compatible with.

HOTFIX

-Fixed not being able to change filters on masks that are supposed to have that feature.

-Fixed masks still protecting the wearer after the filter runs out.