Fine Filter – The Essential Mid-Level Protection for Cleaner Indoor Air
Air filtration is a multi-stage process—and when it comes to capturing smaller particles that slip past pre-filters, the Fine Filter plays a vital role. Installed between coarse pre-filters and high-efficiency HEPA filters, a Fine Filter ensures that indoor environments remain safe, efficient, and compliant with international air quality standards.
❓ What is a Fine Filter?
A Fine Filter is a medium-efficiency air filter that removes fine dust particles, pollen, mold spores, and some bacteria from the air. It typically has a filtration class between F5 and F9 (according to EN 779) or ePM1 / ePM2.5 under the ISO 16890 standard. Fine filters are widely used in commercial, industrial, and cleanroom HVAC systems as a second-stage filtration layer.
✅ Benefits of Using a Fine Filter
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Captures small airborne particles – Especially important in hospitals, labs, and production areas
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Improves indoor air quality (IAQ) – Promotes health and productivity in workspaces
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Protects HEPA filters – Extends the life of more expensive high-efficiency filters
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Ensures energy-efficient airflow – Maintains low pressure drop and stable ventilation
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Supports compliance with ISO, GMP, and LEED standards
📦 Common Types of Fine Filters
| Type of Fine Filter | Filtration Class | Typical Use Case |
|---|---|---|
| Bag Filter (F5–F9) | ISO ePM2.5 | AHUs in hospitals, malls, industrial plants |
| Compact Filter (V-cell) | F7–F9 | Space-saving design for rooftop & ceiling units |
| Pleated Panel Filter | M6–F7 | Offices, schools, and cleanrooms |
| Rigid Cell Filter | F8–F9 | High-volume air handling units |
🏭 Applications of Fine Filters
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🏢 Commercial buildings – Offices, hotels, shopping malls
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🏥 Healthcare facilities – Clinics, ICUs, patient wards
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🧪 Laboratories & cleanrooms – Pharmaceutical, biotech, and R&D environments
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🏭 Industrial production – Electronics, food, cosmetics, automotive
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🏫 Educational institutions – Schools, universities, training centers
🌟 Why Choose Fine Filters from VIETPHAT?
CÔNG TY CỔ PHẦN KỸ THUẬT VIỆT PHÁT (VIETPHAT) is a leading supplier of Fine Filters and air filtration systems in Vietnam. We offer a full range of fine filters from F5 to F9, compatible with all major HVAC and cleanroom systems.
Why customers choose VIETPHAT:
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✅ Genuine products from global brands (AAF, Camfil, EUFIL)
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✅ CO/CQ provided – compliant with ISO 16890 & EN 779
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✅ Custom sizes and OEM replacement filters available
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✅ Fast nationwide delivery from Hanoi & HCMC
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✅ Professional consulting, installation & after-sales support
📞 Request a Fine Filter Quote from VIETPHAT Today
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📱 Hotline / Zalo: 0971 344 344
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📧 Email: sales@vietphat.com
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🌐 Website: www.vietphat.com
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🚚 Ready stock available – Delivery across Vietnam – Support 24/7
VIETPHAT – Clean Air, Green Life
Choose a high-performance Fine Filter from VIETPHAT to ensure cleaner air, longer filter life, and greater operational efficiency for your facility.
