Consumers need to be especially careful when storms knock out electrical power. CO poisoning from portable generators can kill whole families in minutes. CO is called the invisible killer because it is colorless and odorless. CO poisoning from portable generators can happen so quickly that people can become unconscious before recognizing the symptoms of nausea, dizziness or weakness.

This Hurricane Season Take Steps to Protect Your Family from CO Poisoning and Other Post-Storm Dangers | CPSC.gov