Main Types of Environmental Protection Equipment
1️⃣ Regenerative Thermal Oxidizer (RTO)
RTO destroys VOCs by thermal oxidation at ≥ 800°C, recovering heat through ceramic media to ensure high efficiency & low energy consumption.
✔ VOC removal efficiency: ≥ 99%
✔ Energy recovery efficiency: ≥ 95%
✔ Suitable for: coating lines, packaging, chemical plants
👉 Learn more: https://cadair.net/solutions/rto
2️⃣ Catalytic Oxidizer (CO / Catalytic Oxidation System)
Utilizes a catalyst to oxidize VOCs at a lower temperature (250–400°C), reducing fuel consumption.
✔ Best choice for stable & lower concentration VOCs
✔ Fast start-up, great for frequent operations
👉 Details: https://cadair.net/solutions/co
3️⃣ Regenerative Catalytic Oxidizer (RCO)
A hybrid system—combines catalyst technology with RTO’s heat storage.
✔ Lowest energy cost among oxidizers
✔ Prevents secondary air pollution
✔ Used in pharmaceutical, electronics, and precision coating industries
👉 Details: https://cadair.net/solutions/rco
4️⃣ Zeolite Rotor VOC Concentration System
Reduces large airflow with low concentration VOCs by concentrating them into a smaller, high-concentration stream.
✔ Perfect with RTO/RCO to reduce cost
✔ Controls large ventilation systems effectively
👉 Details: https://cadair.net/solutions/zeolite-rotor
5️⃣ Baghouse Dust Collector
Captures solid particulate pollutants in exhaust gases.
✔ Highly efficient PM2.5 removal
✔ Used in steel, cement, biomass, and chemical industries
6️⃣ Wet Scrubber (Gas Absorption Tower)
Removes acidic or water-soluble pollutants like HCl, SO₂, NH₃.
✔ Gas-liquid chemical reaction for purification
✔ Also cools and humidifies exhaust gas when needed
Equipment Selection Guide
| Exhaust Type | Best Solution |
|---|---|
| High VOC concentration | RTO / RCO |
| Low VOC + large airflow | Zeolite Rotor + RTO |
| Acid/alkali gas | Wet Scrubber |
| Particulate Dust | Baghouse |
| Frequent start/stop scenario | Catalytic Oxidizer |
Why Businesses Choose These Systems
✔ Compliant with global environmental laws
✔ Lower carbon footprint
✔ Increased sustainability & brand value
✔ Protect employee health & community air quality
Conclusion
Industrial Environmental Protection Equipment such as RTO, RCO, Catalytic Oxidizers, VOC Concentration Systems, and Dust Collectors are essential for controlling gaseous emissions and reducing industrial pollution. Choosing the correct system ensures environmental compliance and operational efficiency.

