For decades, fire investigators have worked in a gray zone of protection. Structural turnouts are built for the fireground, not the long hours spent sifting through ash, debris, and unstable structures after the flames are out.
Yet many investigators have had no choice but to rely on their turnouts, or on single layer garments that leave them vulnerable to sharp debris, contaminants, moisture, and unpredictable scene conditions.
That gap finally closes with the launch of Fire-Dex’s Fire Investigation PPE—the first protective ensemble built specifically for fire investigators. This patent pending gear delivers exactly what investigators have been asking for: dependable protection without unnecessary weight, freedom of movement without sacrificing safety, and breathable materials designed for long-duration work in challenging environments.
Fire-Dex partnered with seasoned investigators across the country to understand exactly where typical gear falls short. They told us that they work in environments that are unpredictable, physically demanding, and hazardous. Yet despite the complexity of their job, they’ve historically been forced to wear gear that wasn’t designed for their needs. This mismatch creates several critical problems that affect safety, efficiency, and overall performance on scene.
Most investigators today rely on full structural turnout gear because it’s the only PPE readily available to them. While turnouts are essential for interior fire attack, they are not built for post-fire investigative work. Their weight, bulk, and heat retention slow investigators down, limit mobility in tight spaces, and increase fatigue during long-duration operations.
What’s more, wearing gear designed for high-heat environments traps unnecessary heat when investigators spend hours on scene. Even without a fire, a hot day in a burned out building is still a hot day. This can lead to dangerous levels of heat stress, a persistent problem across the field.
On the opposite end of the spectrum, some investigators choose lightweight, single-layer garments. While these options reduce bulk, they introduce a new set of risks.
This kind of PPE often fails to protect against sharp debris, wet ash, contaminated surfaces, and hidden structural hazards commonly found during post-fire examinations.
Investigators may find themselves kneeling on wet or jagged surfaces without adequate protection, climbing through unstable debris without reinforced areas, or exposing themselves to moisture and contaminants that can quickly penetrate fabrics that weren’t meant to protect from them.
Investigators routinely need fast access to tools like flashlights, evidence markers, notebooks, cameras, or even firearms in certain areas. Because their gear hasn’t been designed with these tasks in mind, they often resort to improvised storage solutions: clipping tools to belt loops, carrying gear by hand, or stuffing pockets that weren’t meant to hold sensitive or heavy equipment. This slows down the investigative process and increases the risk of dropped, damaged, or contaminated tools.
Documentation technology has also outpaced traditional PPE. Smartphones and tablets have become essential for photographing scenes, recording video, and accessing digital case files—but they’re rarely protected from heat, moisture, and debris in existing gear. Without dedicated pockets, devices can become damaged or contaminated, compromising both safety and the investigation itself.
Investigative work often unfolds in the hottest periods of the day and can last for hours, requiring investigators to crawl, climb, dig, and document with sustained focus. Traditional turnout gear traps heat, while lightweight alternatives may offer no meaningful heat relief.
Without proper venting, airflow pathways, or breathable materials, investigators frequently experience elevated body temperatures and heat exhaustion. That can lead physical issues, including cognitive impairment—a huge issue while doing investigative work.
Investigative scenes are frequently still wet days after fire suppression efforts end. When moisture penetrates clothing, it leads to discomfort, added weight, and, maybe most dangerously, potential exposure to contaminants carried in the water.
While turnouts have moisture barriers for protection, it’s often overkill. Full-body moisture barrier protection simply isn’t necessary during fire investigation. Selective moisture barriers allow more breathability in the garment, as do features like particulate-blocking vents that can let out hot air that would otherwise remain trapped inside.
But on the other hand, no moisture barrier protection isn’t the answer either. Crawling through wet ash and debris requires some level of waterproofing where contact with water is most common. Otherwise gear gets soaked and dangerous contaminants from the fireground end up on your skin.
The lack of targeted waterproofing forces investigators into a loselose choice between being overheated or unprotected.
Fire-Dex’s Fire Investigation PPE is built from the ground up to meet the realities of investigative work with features that directly address long-standing pain points in the field.
The lightweight TECGEN51 fabric dramatically reduces heat retention and bulk, giving investigators the freedom to crawl, climb, and maneuver without the exhaustion caused by heavy structural turnouts.
Strategic smart waterproofing protects high exposure zones—like the knees and seat—so investigators stay dry when working in wet debris, while single layer sections on the thighs and other low risk areas maintain airflow and breathability. Integrated knee pads provide essential cushioning and impact protection during extended kneeling, and the back vent releases trapped heat while blocking particulates, helping prevent heat stress during long, hot operations.
The gear is also packed with features like waterproof cellphone pockets and pass-through zippers to make tool use a breeze.
With innovative features and construction, Fire Investigation PPE from Fire-Dex is the solution fire investigators need to keep them safe on the job.