Ozone (O₃) is widely recognized for its dual role in the environment and in industrial applications. While approximately 90% of atmospheric ozone exists in the stratosphere—where it absorbs harmful ultraviolet radiation and protects life on Earth—ozone present in the troposphere has a very different impact. Ground-level ozone is a strong oxidant and a regulated air pollutant due to its well-documented adverse effects on human health.

 

In many industrial and commercial systems, ozone is intentionally generated for disinfection, deodorization, and water treatment. However, residual ozone must be effectively removed before air is released into occupied spaces or the environment. Ozone Decomposition Catalyst Powder, developed by DEAI CHEM, is designed specifically to address this requirement when applied as a catalytic coating on honeycomb filter substrates.Compatible with metallic, ceramic, and cellulose substrates for flexible application.

 

 

 

 

Health Risks Associated with Residual Ozone

 

 

Ozone is a triatomic oxygen molecule with strong oxidative properties. At elevated concentrations, inhaled ozone reacts with biological tissues and oxidizes mucous membranes throughout the respiratory tract, including the nasal cavity, throat, trachea, and lungs. Short-term exposure may cause irritation, coughing, headaches, chest tightness, and fatigue, while prolonged exposure to high ozone levels can penetrate deep into the lungs, potentially leading to pulmonary edema and other serious respiratory conditions.

 

For this reason, reliable ozone removal is not only a regulatory requirement but also a critical component of occupational and indoor air quality management.

 

 

 

 

Catalytic Ozone Decomposition on Honeycomb Structures

 

 

DEAI CHEM’s Ozone Decomposition Catalyst Powder is engineered for coating onto metallic, ceramic, and cellulose-based honeycomb substrates, providing exceptional flexibility for system designers and OEM manufacturers.

 

When ozone-containing air passes through the catalyst-coated honeycomb filter, ozone molecules adsorb onto the catalyst surface and are decomposed into oxygen (O₂). This reaction occurs efficiently at ambient and sub-ambient temperatures, without external heat input or secondary chemical reactions.

 

The honeycomb geometry plays a key role in system performance. By combining high geometric surface area with straight-through flow channels, honeycomb filters achieve an optimal balance between high catalytic efficiency and low pressure drop. This design minimizes energy consumption while maintaining stable ozone removal performance, even under relatively high air velocities commonly found in office equipment and compact ventilation systems.

 

 

 

 

Performance Stability in Continuous Operation

 

 

A critical advantage of this catalyst system is its ability to maintain consistent ozone decomposition efficiency over extended operating periods. The catalyst remains active under continuous airflow and fluctuating operating conditions, making it well suited for applications such as:

 

✅ Office equipment ozone control
✅ Indoor air purification systems
✅ Laboratory and cleanroom exhaust treatment
✅ Process air handling systems requiring low pressure loss

 

The powder coating approach ensures uniform catalyst distribution across the substrate surface, maximizing active sites while preserving structural integrity of the filter.

 

 

 

 

Technical Characteristics

 

 

The Ozone Decomposition Catalyst Powder is characterized by fine particle size and high surface area, supporting rapid catalytic reactions at low residence times:

 

• Particle size: < 20 microns
• BET specific surface area: ≥ 200 m²/g
• Weight loss: < 5% (3 hours at 105 °C)

 

These properties support strong adhesion to honeycomb substrates and long-term stability during operation.

 

 

 

 

A Practical Solution for Ozone Control

 

 

By integrating DEAI CHEM’s Ozone Decomposition Catalyst Powder with honeycomb filter technology, system designers can implement a passive, energy-efficient, and reliable ozone control solution. The compatibility with metallic, ceramic, and cellulose substrates enables broad applicability across industrial, commercial, and indoor air treatment systems.