Poison emission is the ability to emit a deadly poison, which can kill people in one's vicinity.
- Maya Herrera possessed this ability naturally, but lost it after Arthur absorbed it.
- Arthur Petrelli had taken this ability from Maya.
When distressed, Maya emits a black liquid from her eyes. People near her when she manifests these symptoms rapidly become ill and die, also leaking black liquid rom their eyes. The blood of Maya's victims also turns black. The maximum range of this effect is not yet known, but seems to be substantial, as she is able to kill all of the guests at a wedding reception.
Maya's ability incapacitates people who are affected almost immediately, leaving little opportunity for them to try and attack her. What would happen to victims if she were killed or rendered unconscious while manifesting her ability is not known. Alejandro's ability can negate this ability and even reverse the effects on victims if applied quickly enough.
Maya used to have little, if any, control over her ability. Thanks of Sylar, she can now stop the manifestation of her power without the help of Alejandro. Her ability spontaneously manifests when she feels emotional distress: fear, grief, anger, etc. She has yet to activate her ability under other circumstances, and she does not appear to be able to "target" the ability against particular people.
After Arthur took this ability from Maya, he turned to Mohinder and showed him that he had taken her ability.