Polyolefin vs Nonwoven in Roll-type Carbon Filters｜How to Prevent Early Clogging

Key Takeaways

• Filter material directly affects service life, pressure stability, and VOC breakthrough risk
• Polyolefin (TS5000S) is suitable for high VOC load / long operating hours / continuous production
• Nonwoven (TS5000K) is suitable for moderate load / cost-focused projects / flame-retardant needs
• Choosing the wrong material leads to early clogging and frequent auto-switch operation
• Both materials achieve ≥85% filtration efficiency (ASHRAE); the difference lies in clogging behavior

In Roll-type Carbon Filter systems, many factories focus on roll length or the auto-switch mechanism.
In reality, the support material holding the activated carbon is a key factor that determines system stability under high VOC load and multi-shift operation.
This article explains, in a clear and practical way, how Polyolefin and Nonwoven differ—and how to choose the right one.

■　Why Filter Material Causes “Early Clogging”

Even with a roll-type structure and auto-switch system, using the wrong material can cause:

• Rapid increase in pressure drop
• Auto-switch activating too frequently
• VOC breakthrough before the intended switching point

The root cause lies in how each material handles paint mist and maintains airflow paths.

■　Key Differences Between Polyolefin and Nonwoven

Polyolefin (TS5000S)

• High structural stability, resists deformation
• Handles overspray and humidity well
• Maintains open airflow channels → stable pressure
• Ideal for high VOC load and long-term operation

Nonwoven Fabric (TS5000K)

• Flexible compressed fibers, lower cost
• Flame-retardant
• Suitable for general applications
• May saturate faster under continuous heavy overspray

■　How to Choose the Right Material (Simple Rules)

• High VOC + 16–24 h operation → Polyolefin
• Moderate VOC + cost control → Nonwoven
• Do not judge by efficiency alone

Both materials meet ≥85% (ASHRAE)
The real difference is slow vs fast clogging

■　Comparison Summary

Polyolefin (TS5000S)

• High shape stability
• Low deformation
• Very stable pressure
• Less frequent auto-switch
• Higher cost

Nonwoven (TS5000K)

• Flexible structure
• Higher deformation risk
• Stable pressure (moderate)
• More frequent auto-switch
• About half the cost
• Flame-retardant

■　What Happens When the Wrong Material Is Chosen

Plastic parts paint shop, 3-shift operation, solvent-based paint
Chose Nonwoven for cost reasons

Results:

• Auto-switch activated too frequently
• Pressure fluctuation at end of shifts
• VOC leakage observed

After switching to Polyolefin:

• Pressure stabilized
• Switching frequency reduced
• VOC control improved

■　Summary

Polyolefin and Nonwoven differ not only in price, but in how they behave under real VOC load.
Selecting the correct material allows the roll-type filter and auto-switch system to operate at full efficiency—maintaining stable pressure, preventing early clogging, and ensuring effective VOC control.

※　Download the Carbon Filter Series Catalogue to support material selection based on VOC load

■　FAQ

Q1: Do both materials remove VOCs equally?
A: Yes. Both meet ASHRAE ≥85%, but service life differs.

Q2: Which material is better for cost control?
A: Nonwoven (TS5000K) for moderate load conditions.

Q3: Which material is recommended for 3-shift operation?
A: Polyolefin (TS5000S) provides better long-term stability.

■　Cluster Internal Link

• Basic Knowledge: https://prime.nc-net.com/100377/en/product_others/detail_goods/27604
• Core Content: https://prime.nc-net.com/100377/en/product_others/detail_goods/27577

■　 Glossary

• Polyolefin: High-stability material for continuous operation
• Nonwoven Fabric: Compressed fiber material, cost-effective
• VOC Load: Amount of VOC the system must handle
• Auto-switch: Automatic filter media switching mechanism
• VOC Breakthrough: VOC leakage when the filter is saturated

■　Reference

• Carbon Filter Series – Product Catalogue (TS5000S / TS5000K)

■　Trust

Reviewed by Yuki Okuno – Project Leader, TS COATING (THAILAND) CO., LTD.
Based on: Carbon Filter Series – Product Catalogue

#RollTypeCarbonFilter #Polyolefin #Nonwoven #MaterialEngineering #VOCLoad #AutoSwitch #CarbonFilter #PaintBooth #IndustrialCoating #VOCControl

Updated: 2025-12-12