A Disoriented character ranges from simply dizzy to manic. Its milder levels add difficulty to actions while at its extreme end the character is at risk of losing touch with reality. Insanity is what occurs when Disorientation III becomes permanent, but the effects of true insanity will vary on a case by case basis.
Disorientation I: A character or NPC must pass an Easy Air saving throw at the beginning of their turn or fall prone from dizziness
Disorientation II: Disorientation I, but the save is against the Area DC
Disorientation III: Special case, invloves permanence of the effects or Insanity.
Disorientation I: Air 2
Disorientation II: Air 4
Disorientation III: Air 8