Decontamination System for Exposed Military Garments
Executive Summary
Epcon designed and delivered a custom high-air-velocity thermal decontamination system to safely and effectively decontaminate protective DPE (Demilitarization Protective Ensemble) suits exposed to chemical warfare agents. The system uses electric heating and controlled hot-air recirculation to raise suit temperatures to 190–400 °F within 15–20 minutes, vaporizing and oxidizing hazardous residues. With uniform air flow and mechanical agitation to prevent sticking, the unit ensures complete decontamination without damage to suit materials — offering a reliable, safe, and compliant solution for military and defense garment decontamination needs.
Project Overview
A major government contractor needed a robust solution to thermally decontaminate disposable protective suits (DPE suits) that had been exposed to chemical agents (e.g., HD, GB, VX). These suits — made of chlorinated-polyethylene outer garments with PVC visors — measure approximately 3 ft × 7 ft and weigh about 15 lbs. Given the extreme hazard potential, simple cleaning or washing was insufficient. Epcon was tasked to engineer a dedicated decontamination oven-system capable of handling multiple suits, maintaining safety, and delivering consistent, verified decontamination performance.
The Challenge
The challenges for this project included:
- The protective DPE suits had potentially been contaminated by highly toxic chemical warfare agents and vapors — requiring a decontamination process that reliably removes or destroys chemical residues and vapors before handling.
- Suit materials are sensitive: the decontamination process must avoid damaging or degrading the suit material (chlorinated polyethylene), visors, or other components. Direct flame or excessive heat could impair protective performance.
- The decontamination process had to ensure uniform heat exposure and airflow — avoiding cold spots or areas where contaminants could persist. Uniform air flow and suit movement were necessary to ensure all surfaces are treated.
- The system had to process multiple suits efficiently, to meet operational throughput requirements (suiting up / decontaminating cycles), while ensuring safety and compliance.
- Given the volatile and hazardous nature of the contaminants, the exhaust handling and combustion (vapor oxidation) needed to reliably destroy vapors without releasing them untreated.
Engineering Requirements
To meet the above demands, the system specification required:
- A high-air-velocity decontamination chamber capable of circulating hot air uniformly around garments, reaching a controlled temperature range of 190–400 °F, in a short cycle time (approx. 15–20 min).
- Electric heating elements (versus direct flame) to provide stable, controllable heat that avoids hot spots and reduces risk of material damage.
- A recirculation and air-movement system designed to agitate suits gently and continuously — preventing garments from sticking together, ensuring all surfaces are exposed, and maintaining uniform temperature distribution.
- An exhaust-air handling and vapor-oxidation system to safely treat and destroy gases and vapors released during decontamination — ensuring no hazardous release.
- Industrial-grade construction and controls to ensure repeatable, safe operation under heavy-duty and potentially hazardous substance decontamination cycles.
- Facility layout and ergonomics to allow safe loading/unloading of contaminated suits, preventing cross-contamination, and ensuring operator safety throughout the process.
The Solution
Epcon delivered a custom high-velocity thermal decontamination oven tailored for chemical-contaminated protective garments:
- The system uses electric heating elements to uniformly heat air, and a high-velocity recirculation fan to deliver hot air around the garments, rapidly raising temperature to the target range (190–400 °F) in about 15–20 minutes.
- Garments inside the chamber are gently agitated or exposed to turbulent airflow, preventing contact between surfaces and ensuring complete, uniform exposure to hot air, vaporizing any volatile contaminants.
- Exhaust air containing vaporized contaminants is routed through a combustion/oxidation and air-pollution control system to destroy the vapors safely before discharge — ensuring no toxic release.
- The system is skid-mounted and designed for efficient loading/unloading cycles, enabling practical use in military or defense facilities.
- Controls include temperature regulation, airflow management, safety interlocks, and monitoring to ensure consistent performance and operator safety under strict decontamination protocols.
Technical Specifications
System Type: High-air-velocity Thermal Decontamination Oven for Protective Garments
Target Garments: DPE (Demilitarization Protective Ensemble) chemical-protective suits (chlorinated-polyethylene outer shell, PVC visor)
Temperature Range: 190–400 °F (adjustable depending on decontamination protocol)
Cycle Time: 15–20 minutes to reach target temperature and complete decontamination process
Heating Method: Electric heating elements — precise, stable heating with no direct flame
Airflow / Recirculation: High-velocity hot-air recirculation for uniform heating and garment movement; prevents sticking, ensures full surface exposure to hot air
Exhaust Handling: Vapor-rich exhaust routed to oxidation/air-pollution control to destroy volatile contaminants prior to discharge
Operational Scope: Suitable for recurring decontamination cycles of multiple protective suits in military/petrochemical/defense contexts
The Results
After commissioning, the decontamination system delivered the following benefits:
- Complete, reliable decontamination of chemical-exposed protective garments, ensuring hazardous residues and vapors are removed or destroyed before handling — critical for operator safety and regulatory compliance.
- Rapid cycle time and operational efficiency: suits are processed in 15–20 minutes, supporting throughput demands while enabling reuse or safe disposal.
- Uniform, consistent decontamination without damaging garments, thanks to controlled electric heating and uniform airflow design, preserving the structural integrity and protective properties of the DPE suits.
- Safe handling of hazardous vapors: exhaust treatment prevents toxic release, ensuring facility safety and environmental compliance.
- Practical, turnkey solution for defense and chemical-industry customers, demonstrating Epcon’s capability to deliver specialized decontamination systems for high-risk applications.
Learn More
Epcon specializes in custom-engineered decontamination systems, thermal processing ovens, and air-pollution control equipment for hazardous-materials, defense, chemical, and industrial applications.
Contact our engineering team to discuss a tailored thermal decontamination solution for protective garments, equipment, or hazardous-material exhaust streams.
