Carbon Monoxide (CO) Poisoning Fact Sheet

For Everyone

What to know

Carbon monoxide (CO) is an odorless, colorless gas that kills without warning. It claims the lives of hundreds of people every year and makes thousands more ill. Many household items including gas- and oil-burning furnaces, portable generators, and charcoal grills produce this poison gas. Following these important steps can keep your family safe.

Format: PDF
Language: English (US)
Content Source
National Center for Environmental Health
About This Page
Published: May 15, 2024
Updated: April 11, 2024

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 21, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.