Winter's Silent Killer: CPSC Issues Urgent Warning on CO Poisoning

WASHINGTON, DC – March 16, 2026 – As severe winter weather sweeps across the nation, triggering power outages and frigid temperatures, the U.S. Consumer Product Safety Commission (CPSC) has issued an urgent public warning about the deadly, invisible threats that can accompany the struggle to stay warm and powered: carbon monoxide (CO) poisoning and fire. The agency emphasizes that improper use of portable generators, heaters, and other fuel-burning devices during emergencies can turn a power outage from an inconvenience into a tragedy.

At the heart of the warning is the danger posed by gasoline-powered portable generators, a common tool for restoring electricity but one that proves fatal for nearly 100 Americans each year, according to CPSC data. Dubbed the "invisible killer," carbon monoxide is a colorless, odorless gas that can incapacitate a person in minutes, causing nausea, dizziness, and weakness before they even recognize the danger, often leading to unconsciousness and death.

A Rising Tide of Preventable Deaths

The CPSC's alert is not a routine seasonal reminder; it is a response to a disturbing trend. While portable generators are the leading cause of non-fire CO fatalities, the overall number of deaths from CO poisoning linked to consumer products has been climbing. Data shows a staggering 66.7% increase in these deaths between 2009 and 2019, peaking at 254 fatalities in 2019.

This statistical reality is underscored by recent tragedies. In January, a winter storm in Tennessee led to the deaths of two men from carbon monoxide poisoning, one of whom was found with a generator running inside his bedroom. In the same week, the Tennessee Poison Center handled 107 cases of CO poisoning, with dozens of children—who are more susceptible due to their smaller bodies and faster breathing—requiring hospital treatment. This follows a similar incident in Louisiana where an 86-year-old man died from CO poisoning after a storm.

These events echo the catastrophic 2021 Texas winter storm, which caused what experts called the "biggest epidemic of CO poisoning in recent history," with over 1,400 people seeking emergency care. Research has also revealed a troubling disparity, with African Americans accounting for 23% of generator-related CO deaths, a figure nearly double their share of the U.S. population. The vast majority of these fatal incidents—over 80%—occur in residential settings during power outages, when desperation can lead to deadly mistakes.

The Golden Rules of Generator Safety

To combat this threat, safety officials stress that there are absolute, non-negotiable rules for using a portable generator. The CPSC's primary directive is clear: NEVER operate a portable generator inside a home, garage, basement, crawlspace, shed, or any other enclosed or partially enclosed area. Opening doors and windows is not a substitute for proper ventilation and will not prevent the lethal buildup of carbon monoxide.

The only safe place for a portable generator is outdoors, on a stable surface, and a minimum of 20 feet away from the house. The generator's exhaust must be directed away from all doors, windows, and vents. Operating a generator in a carport or on a porch is explicitly warned against, as proximity can still allow the deadly gas to seep into the home. Consumers should also consult the manufacturer's instructions regarding use in rain or snow, which may require a specialized, noncombustible generator tent.

A Home Full of Hidden Hazards

While generators are a primary focus, winter power outages create a web of potential dangers inside the home. The CPSC urges vigilance with all heat and light sources.

Portable Heaters: These devices are a common cause of house fires. A "three-foot rule" is essential: keep all flammable items, including bedding, curtains, papers, and furniture, at least three feet away from all sides of the heater. Always place heaters on a stable, level surface and never leave them running unattended. Critically, electric heaters should be plugged directly into a wall outlet, not a power strip or extension cord, which can overheat and cause a fire.

Charcoal and Candles: In a power outage, it may be tempting to bring a charcoal grill indoors for warmth or cooking. This must never be done. Burning charcoal in an enclosed space produces lethal levels of carbon monoxide. Similarly, while candles can provide light, they pose a significant fire risk. The CPSC recommends using flashlights or battery-operated candles instead. If traditional candles are used, they must be kept away from anything flammable and extinguished before leaving a room or going to sleep.

The single most effective tool against these silent threats is an alarm. Every home should have working smoke and CO alarms on each level and outside separate sleeping areas. Interconnected alarms are considered the best option, as they all sound when one detects a threat. These alarms must be tested monthly, and their warnings should never be ignored. If an alarm sounds, evacuate the house immediately and call 911 from outside.

Technology and Regulation Offer New Hope

In response to the persistent death toll, both industry and regulators are pushing for technological solutions. A key development is the integration of CO shut-off safety features in new portable generators. These systems automatically turn off the generator when high concentrations of carbon monoxide are detected in the surrounding area. Major manufacturers like Honda (CO-MINDER™), Generac (CO-SENSE™), and Briggs & Stratton (CO Guard™) have already implemented this life-saving technology.

Two voluntary safety standards have guided this innovation: ANSI/PGMA G300, which focuses on the shut-off mechanism, and UL 2201, which goes further by requiring both a shut-off and a reduction in the engine's overall CO emissions. CPSC simulations suggest that generators compliant with the more stringent UL 2201 standard could prevent nearly all CO-related deaths.

Recognizing the "unreasonable risk of injury and death," the CPSC took a significant step in 2023 by voting to advance a proposal for the first-ever mandatory federal safety standard for portable generators. This proposed rule would require all new generators to include both lower CO emissions and an automatic shut-off system, aiming to make these life-saving features universal rather than optional. While these advancements are promising, they do not replace the need for consumer awareness and vigilance. The fundamental principles of safe operation remain the most critical defense for every family facing a winter storm.