When a carbon monoxide (CO) incident happens on a school campus, one of the first questions everyone asks is: “Where did it come from?” Parents want to know. Staff want to know. Journalists want to know. Fire marshals and investigators need  to know. But right now, the language we use to describe CO sources in schools is inconsistent and confusing. News stories call it a “gas leak,” a “ventilation problem,” an “equipment issue,” or simply “fumes,” even when the actual hazard

It's time to set the record straight: Carbon monoxide is not a “gas leak.” It is a toxic gas exposure. And using the wrong language confuses the public, delays understanding, and prevents families from knowing what actually happened, or how to protect their children in the future. This imprecise reporting isn’t a small issue. It undermines awareness, downplays risk, and allows preventable CO incidents to keep happening.

If you’re responsible for a school, childcare center, campus facility, or any public building, you may have been told some version of: “Don’t worry; we have CO detectors installed.” But here’s the problem: Most buildings rely on carbon monoxide devices that weren’t designed for educational or multi-room environments. And many assume all CO detection devices work the same; they don’t.

Every year, students and educators are exposed to, and often poisoned by, a gas that no one can see, smell, taste, or hear: carbon monoxide. At CO Safe Schools, we believe that awareness isn't enough; we need a framework that helps everyone understand how to take action. That's why we developed the 4 P's of CO Safety: poison, prevention, protection, and preparedness.

For decades, carbon monoxide (CO) safety education has relied on a familiar visual: a chart linking parts per million (PPM) to predicted health effects. It’s neat, it’s easy to reference, and it’s dangerously incomplete. Because carbon monoxide exposure doesn’t follow charts. It follows conditions: who you are, where you are, and how long you’re there. That’s why it’s time for a new way to understand CO’s impact: a model that puts people, not numbers, at the center.

"Why Don't All Schools Have Carbon Monoxide Detection?" Tune in for the answer.

Carbon monoxide exposure is preventable. Our Five Year Snapshot report shows there's still a ways to go before schools are actually taking the steps to prevent.

"Negative air pressure" may sound harmless, but it's a big factor in carbon monoxide buildup in school buildings.

The model building codes used in the U.S. are updated every three years, but not often regularly adopted by states, leaving tremendous gaps in safety.

CO Safe Schools has released its 2nd annual U.S. Campus Report Card – highlighting startling statistics and data for 2023-2024 school year.

CO Safe Schools has released its Campus Safety Report for the 2022-2023 school year, reviewing the year's campus-based CO incidents.

A look at Boston Public Schools Indoor Air Quality (IAQ) dashboard, released in 2022.

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