At first glance, cotton seems ideal—it’s breathable, comfortable, and natural. But in firefighting, these everyday strengths quickly become dangerous liabilities. Despite its popularity, cotton poses serious safety risks for firefighters—making it a hidden threat on the fireground.At first glance, cotton seems ideal—it’s breathable, comfortable, and natural. But in firefighting, these everyday strengths quickly become dangerous liabilities. Despite its popularity, cotton poses serious safety risks for firefighters—making it a hidden threat on the fireground.

Cotton: Comfort or Catastrophe?

Cotton is widely chosen for its softness and breathability, but these same qualities can turn deadly in high-risk environments. Cotton is fuel. When exposed to heat or flames, it can ignite and continue burning, potentially causing severe injuries.

One example: a firefighter wearing a cotton/poly blend coverall sustained burns when the garment caught fire. Thankfully, protective underlayers reduced the severity—but the outcome could have been much worse.

While synthetic fabrics melt, untreated cotton burns—and often clings to the skin, feeding the fire. Neither is ideal near flames, but cotton isn’t a safer fallback. It simply burns differently—often more destructively.

The Hidden Threats: Contaminants on PPE

During and after fireground operations, PPE is often contaminated with a variety of dangerous substances that pose serious long-term health risks:

  • Carcinogens: Combustion releases harmful chemicals like benzene, formaldehyde, and polycyclic aromatic hydrocarbons (PAHs), which can cling to gear. These can be absorbed through the skin or inhaled when gear is reused without cleaning.
  • Particulate Matter: Fine particles in smoke and soot can infiltrate the lungs, increasing the risk of respiratory and cardiovascular diseases.
  • Biological Hazards: Firefighters responding to accidents or medical emergencies may come into contact with blood, saliva, or other bodily fluids, exposing them to infectious bacteria and viruses.

Health Risks of Contaminated Gear

Wearing unclean or poorly maintained gear can lead to a range of health problems:

  • Cancer: Firefighters face significantly higher rates of certain cancers—including skin, lung, and bladder cancer—due in part to repeated exposure to carcinogens embedded in their gear.
  • Respiratory Illnesses: Toxic fumes and particles trapped in PPE can lead to conditions such as asthma, bronchitis, and COPD (Chronic Obstructive Pulmonary Disease).
  • Skin Irritation and Absorption: Contact with contaminated gear may cause rashes, dermatitis, or other skin problems. Some toxins can even penetrate the skin and affect internal organs.
  • Infections: Exposure to biological contaminants increases the risk of infections that can range from mild to severe.

Environmental and Health Concerns

Beyond its performance drawbacks, cotton also raises sustainability concerns. Conventional cotton is often grown with heavy pesticide use, contributing to environmental pollution and health issues. It’s also water-intensive, requiring about 1,800 gallons of water to produce a single pair of jeans.

The Safer Option: Flame-Resistant (FR) Clothing

Fortunately, better options exist. Flame-resistant (FR) station wear and wildland uniforms—made from materials like Nomex®, Kevlar®, and modacrylic blends—are engineered to self-extinguish once the ignition source is removed. They limit the severity of burns and are compliant with NFPA 2112 safety standards for thermal exposure.

Keeping PPE Clean and Effective

Clean PPE isn’t about appearance—it’s about protection. Departments and individuals should follow these best practices:

  • Routine Cleaning: PPE should be cleaned after each use using manufacturer-approved methods. Standard home washers are not effective.
  • Advanced Cleaning: Periodic deep-cleaning (e.g., extraction washing or ozone treatment) helps eliminate embedded toxins.
  • Frequent Inspections: Regularly inspect gear for wear, damage, or failed components. Replace or repair anything compromised.
  • Proper Storage: Store gear in a clean, dry, ventilated area away from direct sunlight and chemicals to maintain integrity.

Final Thoughts

Cotton may be comfortable, but it’s dangerously flammable and poorly suited for firefighting. Combined with the risks of contaminated PPE—like carcinogens, particulates, and biological hazards—improper gear can put firefighters at serious risk.

Choosing flame-resistant clothing and maintaining clean, inspected PPE is essential. The right gear doesn’t just meet safety standards—it protects lives on and off the fireground.