As winter storms sweep across the United States, leaving millions without power, they bring an often overlooked threat: carbon monoxide (CO) poisoning. Experts at the U.S. Consumer Product Safety Commission (CPSC) are warning over the deadly risks posed by CO, especially from gas-powered generators used during power outages.

The risk is significant. More than 400 Americans die each year, according to the US Centers for Disease Control and Prevention (CDC). carbon monoxide poisoningThe CPSC says approximately 92 of these deaths are linked to improper use of portable generators.

To prevent such tragedies, CPSC has shared important safety tips for people who rely on gas generators during winter storms.

Generators should never be operated indoors or in enclosed spaces such as garages, porches, carports, basements or crawlspaces. CO is an odorless, invisible gas that can accumulate rapidly, even if windows or doors are left open.

Instead, place the generator at least 20 feet away from your home, making sure to direct exhaust fumes away from any living spaces or vents. To further reduce the risks, seal windows, dryer vents, or any other openings that could allow exhaust to get in.

It is also important to follow the manufacturer’s guidelines regarding use in inclement weather. CPSC advises users to avoid electrical shock hazards by using an NFPA-rated non-combustible generator tent or waiting for rain to subside before running the device.

Modern generators equipped with CO safety shut-off features provide an additional layer of safety. These devices automatically shut off when high CO levels are detected. Look for generators certified to safety standards like PGMA G300-2018, PGMA G300-2023, or UL 2201, which are designed to significantly reduce CO-related deaths.

Install and maintain CO and smoke alarms

Working CO and smoke alarms are essential, especially during hurricane season. Interconnected alarms are recommended, as they alert the entire house when one rings. Install alarms on every level of your home and in every bedroom.

If a CO alarm sounds, evacuate immediately and call 911.

Winter storms can also create lightning hazards. Avoid touching wet electrical equipment, as it may cause shock. Appliances immersed in water, including gas and electrical systems, should be inspected by professionals before re-use. Replace any damaged components, such as gas control valves, wiring, circuit breakers and fuses.

Charcoal and candles pose additional risks

The CPSC strongly warns against using charcoal grills or braziers indoors, including in garages, because they emit lethal CO levels.

Candles, another common problem during power outages, are also dangerous. Use battery operated lights instead. If candles are your only option, keep them away from flammable objects, never leave them unattended, and extinguish them before sleeping or leaving the room.

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