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Filter bags F5-F6-F7-F8-F9

1. What Are F5–F9 Bag Filters? Working Principle & Technical Standards

F5 to F9 bag filters are manufactured in accordance with international standards such as EN 779:2012 or ISO 16890. These filters are designed to effectively remove fine dust, bacteria, and airborne pollutants in various ventilation and cleanroom systems.

Filtration Classifications by Efficiency:

Filter ClassParticle Size (µm)Filtration EfficiencyCommon Applications
F5 >10 µm 40 – 60% HVAC pre-filters, woodworking factories
F6 5 – 10 µm 60 – 80% Cement plants, fresh air systems
F7 1 – 5 µm 80 – 90% Cleanrooms, hospitals
F8 0.5 – 1 µm 90 – 95% Laboratories, electronics manufacturing
F9 <0.5 µm 95 – 98% Pharmaceuticals, microchip production

Color Coding by Filter Class:

Filter ClassColorDescription
F5 White/Light Blue Coarse filtration, low efficiency
F6 Light Pink Medium filtration
F7 Yellow/Light Green Fine filtration for clean areas
F8 Dark Blue Higher fine filtration
F9 Grey/Purple Ultrafine filtration, highest efficiency

2. Structure & Materials of F5–F9 Bag Filters

F5–F9 bag filters are engineered for optimal performance and durability, even under harsh industrial conditions.

Key Components:

  • Filter Media: Polyester or fiberglass, heat-resistant up to 200°C

  • Frame: Aluminum profile, galvanized steel, or stainless steel (304/316L)

  • Rubber Gasket: Ensures airtight sealing, prevents air leakage

  • Pleated Design: Expands surface area, enhances filtration without excessive pressure drop

3. Outstanding Benefits of F5–F9 Bag Filters

Protect HVAC Equipment: Prevents fine dust buildup on AHU, FCU coils
Energy Efficient: Reduces HVAC operational costs by 15–20%
Environmental Compliance: Meets QCVN 22:2020/BTNMT standards
Extended System Lifespan: Minimizes maintenance frequency
Health Protection: Captures PM2.5, pollen, bacteria, and allergens

4. Real-World Applications of F5–F9 Bag Filters

🔧 Heavy Industry
Cement, steel, and chemical factories
Air intake and return filtration in production lines

🧪 Healthcare & Pharmaceuticals
Sterile operating rooms (F8–F9)
Pharmaceutical production & packaging areas

💻 Electronics & High-Tech
Cleanrooms for component manufacturing
Microchip and PCB assembly areas

5. F5 to F9 Filter Comparison Chart

CriteriaF5F6F7F8F9
Pressure Drop (Pa) 150–200 180–220 200–250 220–280 250–300
Lifespan (months) 3–4 4–5 5–6 6–8 8–12
Price Level Low Medium High Very High Highest

6. Where to Buy High-Quality F5–F9 Bag Filters at Competitive Prices?

Looking for a trusted supplier of F5–F9 bag filters with top-notch quality and competitive pricing?

📌 Contact us today:

BACH LONG TRADING – SERVICE – MANUFACTURING CO., LTD
📍 Address: 75 Nguyen Hong Street, Ward 1, Go Vap District, HCMC
📞 Hotline: 093 143 54 54
📩 Email: info@congnghelockhi.vn
🌐 Website: www.congnghelockhi.vn