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Dust Filter Media

What Is Dust Filter Media? Structure, Classification & Real-World Applications

1. What Is Dust Filter Media?

Dust filter media (also known as air filter cotton) is a specialized material widely used in both industrial and residential air filtration systems. It captures dust, contaminants, and airborne bacteria, contributing significantly to a cleaner and healthier indoor environment.

Made from high-strength synthetic fibers with a porous structure, this material ensures efficient dust filtration while maintaining optimal airflow. Common thicknesses include 5mm, 10mm, 15mm, and 20mm — suitable for environments such as factories, cleanrooms, hospitals, spray booths, and more.

Filter GradeEfficiency (%)Dust Size (μm)Application
G1 60–65% ≥10 µm Pre-filter for workshops
G2 70–85% ≥5–10 µm Coarse filtration for HVAC systems
G3 ~80% ≥3–5 µm Intermediate filtration, machinery rooms
G4 ~90–95% ≥1–3 µm Cleanrooms, spray booths

2. Advantages of Dust Filter Media

✔️ High Filtration Efficiency
G4-grade filter media can capture up to 95% of fine dust, meeting cleanroom and spray booth standards thanks to its ultra-porous random fiber structure.

✔️ Odor & Gas Removal
Certain types, such as activated carbon filter media, can absorb odors, VOCs, and harmful chemical fumes.

✔️ Flexible Installation
Lightweight and easy to cut to custom sizes, making it compatible with various filter frames and devices.

✔️ Reusable
Some types are washable and reusable, reducing maintenance costs and supporting sustainability.

✔️ Versatile Applications
Widely used in laboratories, factories, HVAC systems, spray painting booths, agriculture, and more.

✔️ Environmentally Safe
Non-toxic and safe for disposal after use.


3. Common Applications of Dust Filter Media

✅ Primary dust filtration for factories and industrial facilities
✅ Cleanrooms in pharmaceutical, food, and electronics industries
✅ Central HVAC systems in malls and office buildings
✅ Automotive and industrial spray booths
✅ Air filtration in hospitals and laboratories
✅ Wood dust, metal dust, and paint particle filtration
✅ Aquaculture and raw water filtration systems

4. Popular Types of Dust Filter Media

🔹 G1 Filter Media

  • Thickness: 5mm

  • Efficiency: 65%

  • Airflow: 7200 m³/h

  • Pressure Drop: 20–125 Pa

🔹 G2 Filter Media

  • Thickness: 10mm

  • Efficiency: 80–85%

  • Roll Size: 2m x 20m

  • Pressure Drop: 17–250 Pa

🔹 G3 Filter Media

  • Thickness: 15mm

  • Efficiency: ~80%

  • Air Velocity: 1.5m/s

  • Pressure Drop: 25–250 Pa

🔹 G4 Filter Media

  • Thickness: 20mm

  • Efficiency: ~90%

  • Airflow: 5400 m³/h

  • Pressure Drop: 30–250 Pa

🔹 Activated Carbon Filter Media

  • Structure: Activated carbon + carbon fiber

  • Function: Odor removal, VOC & toxic gas filtration

  • Applications: Spray booths, chemical environments, HVAC

🔹 Spray Booth Filter Media

  • Includes: F5 ceiling filter media & fiberglass floor filter

  • Airflow: ~3800 m³/h

  • Dust Holding Capacity: ~4kg/m²

5. Frequently Asked Questions (FAQs)

🔸 How long does dust filter media last?

  • Low-dust environments: 3–6 months

  • High-dust environments: 1–3 months

  • Some types can be washed and reused.

🔸 Can dust filter media be washed?
Yes. Grades G1–G3 are washable with mild cleaning. Let them dry completely and check efficiency before reuse.

🔸 Which filter media is best for spray booths?
Recommended:

  • F5 ceiling filter media

  • Fiberglass floor filter media

  • Activated carbon filter media for odor control

🔸 What’s the difference between G1, G2, G3, and G4?

  • G1 – Large particle pre-filtration

  • G2 – Basic ventilation filtration

  • G3 – Intermediate filtration

  • G4 – Fine dust filtration for clean environments

🔸 Can filter media be used for water filtration?
Yes, but only with specific types such as activated carbon or PP filter media for water. Do not use regular air filter media for water filtration.

6. Contact Information

BACH LONG PRODUCTION TRADING SERVICE CO., LTD
📍 75 Nguyen Hong Street, Ward 1, Go Vap District, Ho Chi Minh City
📞 Hotline: 093 143 54 54
📧 Email: sales@congnghelockhi.vn
🌐 Website: www.congnghelockhi.vn