DATE:2025-09-09

Scrubber Selection Guide: How to Choose the Right Exhaust Treatment Equipment?

For factory owners or environmental managers, choosing the right scrubber is often key to both regulatory compliance and cost reduction. But how do you find the best-fit equipment among so many options?

Step 1: Identify Exhaust Source and Composition
Different industries produce very different exhaust characteristics. For example:

• Metal surface treatment: Acid mist (HCl, H₂SO₄)
• Semiconductor & electronics: Ammonia (NH₃), Hydrogen fluoride (HF)
• Coating & printing: Volatile organic compounds (VOCs)

Understanding the pollutant composition helps determine the correct scrubber material and scrubbing liquid.

Step 2: Calculate Airflow and Concentration
The exhaust volume and pollutant concentration directly determine scrubber size and configuration. For instance:

• Small labs: Several hundred CFM per hour
• Medium to large factories: Tens of thousands of CFM per hour

Undersized systems risk overload and inefficiency; oversized systems increase investment and operating costs.

Step 3: Evaluate Scrubber Material
Common materials include FRP (fiberglass-reinforced plastic), PP (polypropylene), and SUS304 (stainless steel).
Selection depends on resistance to acids/alkalis, corrosion, and high temperature.

Step 4: Check for Maintenance Convenience

• Is it easy to replace packing media?
• Are there cleaning ports and inspection doors?
• Is the drainage system prone to clogging?

Step 5: Ensure Environmental Compliance
Ultimately, the scrubber design must meet local environmental emission standards. Otherwise, no matter how cheap, it cannot be used legally.

Sanrey suggested Conclusion:
Scrubber selection is like choosing tailor-made equipment.

You must comprehensively consider pollutant types, airflow and concentration, material requirements, and maintenance costs to truly “buy right and last long.”

If you have any questions about scrubbers and very welcome to contact with us anytime by email or telephone.

Any questions about Scrubbers /active carbon facilities / Deodorant /Air pollution prevention facility you always can contact with us anytime.

Sanrey Environmental Technology ltd is available for you anytime. 
Email address : service@sanrey.com.tw
Telephone nummber :+886-7-7633957 #17 ,Pauline Kuo (International Dept Manager )