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AFF foam is a firefighting substance containing dangerous chemicals called PFAS, which are linked to serious health problems including cancer, kidney disease, and thyroid disorders.
Quick Facts About AFFF:
Since the 1960s, AFFF has been the primary tool for fighting high-hazard flammable liquid fires. It works by creating a thin film over burning fuel, cutting off oxygen. However, this effectiveness comes at a steep cost.
The foam contains per- and polyfluoroalkyl substances (PFAS)—synthetic chemicals that are nearly indestructible. These "forever chemicals" accumulate in the body and the environment, with research showing that nearly all Americans have some amount of PFAS in their blood.
Prolonged contact with AFFF is linked to an increased risk of developing kidney cancer, testicular cancer, thyroid disease, and immune system disorders. The chemicals readily dissolve in water, contaminating drinking supplies through fire training, system testing, and spills.
As Tim Burd, founder of Justice Hero, I've dedicated my career to helping people steer complex legal situations involving dangerous products like AFF foam. Through our work, I've seen how PFAS exposure has devastated families and communities across the country.
For massive jet fuel or petroleum fires, water isn't enough. Aqueous Film-Forming Foam (AFFF), has been the gold standard since the 1960s for fighting dangerous "Class B" flammable liquid fires.
AFF foam works like a liquid blanket, creating a thin aqueous film that spreads across burning fuel to cut off oxygen and prevent reignition. Its unique heat resistance made it invaluable at airports, military bases, and chemical plants where quick containment is critical.
The secret to AFFF's effectiveness is its chemical composition, which combines hydrocarbon surfactants with specialized, nearly indestructible fluorosurfactants. These fluorosurfactants create the crucial film layer and give the foam its heat resistance.
However, these same chemical properties make AFF foam incredibly dangerous. The fluorosurfactants belong to a family of synthetic chemicals called per- and polyfluoroalkyl substances, better known as PFAS.
PFAS are called "forever chemicals" because they do not break down in the environment. These synthetic compounds, including PFOA and PFOS, are so stable they can persist for centuries. While not always an intended ingredient, toxic PFAS like PFOA were often created as byproducts during the AFFF manufacturing process.
Once released during firefighting or training, these chemicals are highly mobile in water, contaminating vast areas of groundwater and drinking water supplies. Worse, they bioaccumulate, building up in human and animal tissue over time. The EPA has documented extensive information about PFAS and their links to serious health problems, including immune system disorders, thyroid disease, and liver and kidney damage.
The people who worked to protect others often faced the greatest risk from AFF foam. Those with the highest occupational exposure include:
Exposure typically occurred through direct skin contact, inhalation of foam vapors, or ingestion of contaminated drinking water, which has devastated entire communities near military bases and airports.
The decades-long use of AFF foam has led to a public health crisis. The PFAS chemicals within it persist in the body and the environment, creating long-term health risks.
PFAS chemicals bioaccumulate, meaning they build up in our blood, liver, and kidneys. Even small, repeated exposures can lead to dangerous levels over time, causing a wide range of serious health effects.
PFAS exposure can lead to immune system disorders, weakening the body's defenses and reducing vaccine efficacy. It is also linked to thyroid disease, as the chemicals disrupt hormone production. The liver and kidneys, which filter toxins, accumulate PFAS, leading to liver damage and kidney damage and increasing the risk of cancerous tumors.
Tragically, exposure is also linked to developmental issues, including infertility, pregnancy complications, and health problems in children. The CDC provides comprehensive information on the Health Effects of PFAS According to the CDC.
The link between AFF foam and cancer is one of the most devastating consequences of PFAS contamination. Multiple studies show a strong connection between these chemicals and several types of cancer.
Beyond cancer, AFF foam exposure is linked to a host of other chronic conditions that can severely impact quality of life:
The environmental legacy of AFF foam is one of today's most challenging contamination problems. Unlike pollutants that break down, PFAS chemicals create a permanent burden on the environment.
Once released, PFAS chemicals dissolve easily in water and travel far, contaminating groundwater, drinking water sources, and soil. Contamination occurs during fire emergencies, but more significantly, through decades of routine fire training exercises at military bases and airports. Accidental spills and runoff from contaminated sites have further spread these chemicals into rivers and groundwater systems.
The long-term environmental impact is staggering. PFAS chemicals accumulate in soil, sediment, and wildlife, creating a web of bioaccumulation that affects entire ecosystems. Cleanup is extraordinarily difficult and expensive, as there is no easy way to destroy PFAS in the environment.
The regulatory response to AFF foam contamination has grown as evidence of its dangers has mounted. Key actions include:
The phase-out creates the challenge of disposing of millions of gallons of hazardous foam. This requires specialized handling, as PFAS chemicals resist conventional waste treatment.
States like Washington have created collection programs to help fire departments safely surrender their AFFF stockpiles. Disposal is difficult and expensive, with the primary methods being high-temperature incineration at licensed facilities or solidification and landfilling in specially designed hazardous waste sites.
To prevent further contamination during the transition, organizations are adopting best management practices, such as using fluorine-free methods to test equipment without discharging foam. Washington's comprehensive program serves as a model for managing this transition safely. You can learn more about their approach through Washington's AFFF collection and disposal program.
The phase-out of AFF foam marks a turning point in fire safety, prioritizing health over convenience. The industry has responded by developing effective fluorine-free alternatives.
Fluorine-free foams (F3) have emerged as viable replacements that extinguish fires without the toxic legacy of PFAS. These foams, which include protein-based and synthetic varieties (SFFF), use different mechanisms like cooling and blanketing to suppress fires. Modern F3 foams are highly effective and biodegradable, breaking down naturally without contaminating groundwater for centuries.
| Feature | AFFF (Aqueous Film-Forming Foam) | F3 (Fluorine-Free Foam) Alternatives |
|---|---|---|
| Effectiveness | Excellent for hydrocarbon fires, rapid knockdown, vapor suppression | Highly effective for hydrocarbon and polar solvent fires, performance continually improving |
| Composition | Contains PFAS (Per- and Polyfluoroalkyl Substances) | No intentionally added PFAS, uses hydrocarbon surfactants or protein-based compounds |
| Environmental Impact | Persistent, bioaccumulative, toxic, contaminates water/soil | Biodegradable, significantly lower environmental persistence and toxicity |
| Health Impact | Linked to various cancers, developmental, and immune disorders | Generally considered non-toxic, no known long-term health risks from exposure to the foam itself |
| Cost | Historically lower initial cost, but high long-term cleanup costs | Initial cost may be higher for some formulations, but avoids massive environmental remediation expenses |
| Industry Adoption | Historically dominant, now being phased out | Growing adoption, mandated in many areas, continuous R&D |
| Mechanism | Aqueous film formation, cooling, oxygen exclusion | Cooling, blanketing, emulsification, oxygen exclusion |
| Regulatory Status | Increasingly restricted or banned | Preferred and often mandated alternative |
For decades, manufacturers of AFF foam allegedly knew about the dangers of PFAS but continued to market their products without adequate warnings. This failure to warn and negligence has left a trail of sick individuals and contaminated communities.
At Justice Hero, we see how this has devastated families. Firefighters, military members, and airport workers now face cancer diagnoses and other serious illnesses due to their exposure.
If you or a loved one developed a serious illness after exposure to AFF foam, you may be entitled to significant compensation through an AFFF lawsuit. These cases hold manufacturers accountable and provide financial relief for:
Navigating a product liability lawsuit can be overwhelming. An experienced AFFF lawyer understands the science and legal complexities, and can guide you through the process.
Qualification for an AFF foam lawsuit depends on your exposure history and medical diagnosis. Key factors include:
Many AFFF lawsuits are consolidated in a Multidistrict Litigation (MDL) for efficiency. While settlement amounts vary, some industry observers speculate payouts could range from $75,000 to $500,000 or more for serious cases, though this is not guaranteed. For more information, see our guide on AFFF lawsuit settlement amounts. Most attorneys offer free consultations, so you can explore your options without financial risk.
Learning about AFF foam and its health risks can be overwhelming. Here are answers to some of the most common questions we receive.
Scientific evidence most strongly links AFF foam exposure to kidney cancer and testicular cancer. However, studies have also established concerning connections to thyroid cancer, prostate cancer, bladder cancer, liver cancer, pancreatic cancer, and colorectal cancer. Because PFAS chemicals accumulate in the body, exposure that happened years ago can still pose a risk today. If you have one of these diagnoses and a history of exposure, it's important to explore the connection.
You cannot see, smell, or taste PFAS chemicals in water. If you live near a military base, airport, or fire training facility, your water could be contaminated. The only way to know for sure is through testing. Your local water authority may publish PFAS test results in its annual water quality report. If you have a private well, you will need to arrange for independent lab testing. The EPA has health advisories for PFAS, so knowing your water's levels is key to protecting your family.
If you believe you were exposed and are unwell, take these steps:
The story of AFF foam is a troubling one: a product hailed as a lifesaver carried a hidden, devastating cost. The PFAS "forever chemicals" in AFFF persist in our bodies and the environment, causing lifelong health problems—a danger that manufacturers may have known about for decades.
The science is clear: AFF foam exposure is linked to serious cancers like kidney and testicular cancer, along with thyroid disease and liver damage. The people who risked their lives to protect us—firefighters, military personnel, and airport workers—often bore the brunt of this exposure.
Regulatory changes, like the military's 2024 phase-out, are important steps, but they don't undo the harm already done. This is why holding manufacturers accountable is so critical. Companies that allegedly put profits over people's health by marketing AFF foam without adequate warnings must face the consequences.
At Justice Hero, our mission is to make complex legal situations understandable. Whether you're a veteran, a firefighter, or someone who lived near a contaminated site, you deserve to know your rights. The legal process can seem intimidating, but it is a powerful tool for justice.
If you or a loved one has been diagnosed with cancer or another serious illness after AFF foam exposure, you are not alone in this fight. Qualified attorneys are ready to evaluate your situation at no upfront cost.
Understanding your rights is the first step toward getting the justice and compensation you deserve. If you or a loved one has been diagnosed with a serious illness after exposure to firefighting foam, you may be entitled to compensation. Learn more about filing an AFFF lawsuit and get a free case evaluation.
