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F7 HVAC Multi Pocket Bag Filter
Pak Bag 65 Series: High-Efficiency EPM2.5 Pak Bag filter (F7 Equivalent)
Premium Air Quality Solutions for Commercial property and Luxury Hospitality.
In densely populated urban hubs across Europe, the Middle East, and Asia, protecting indoor environments from microscopic pollutants is a top priority. The Pak Bag 65 Series by K Filter is a high-performance ePM2.5 65% (F7 equivalent) filter designed for the most demanding HVAC and Clean Room applications.
Engineered from ultra-fine, multi-layer synthetic fibers, these bags are the primary defense against the “invisible” threats in our air: fine dust, bacteria, fungi, and urban smoke.
Engineered for Critical Infrastructure
Our Pak Bag 65 series is specifically designed for high-traffic and sterile environments:
Engineered for Critical Infrastructure
Our Pak Bag 65 series is specifically designed for high-traffic and sterile environments:
Healthcare & Hospitals: Effectively removes bacteria and fungi, providing a vital sterile barrier for patient wards and clinics.
Airports & Metro Stations: Built to endure the turbulent airflow and high vibration of transit hubs while capturing heavy concentrations of jet fumes and brake dust.Luxury Hotels & Commercial Towers: Ensures “Grade A” indoor air quality (IAQ) by filtering out fine urban smog and pollen, meeting strict European and Asian environmental standards
Advanced Technical Construction
Multi-Layer Ultra-Fine Media: Features thermally bonded polyester combined with ultra-fine synthetic fibers to achieve a stable ePM2.5 65% efficiency.
Sonic-Weld Integrity: Every pocket is sonically sealed, creating a high-strength, leak-free bond that prevents bypass—a common failure point in stitched filters.
Aerodynamic Efficiency: Precision-engineered internal channels ensure uniform pocket inflation. This maximizes media utilization and keeps pressure drops low, significantly reducing energy costs for your AHU and FAHU systems.
Standard & Custom Fit: Available in four standard face dimensions and standard pocket lengths, with custom-made options available to fit any legacy or specialized ventilation system
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Performance Comparison: Pak Bag 65 vs. Standard F7 Filters
| Feature | Pak Bag 65 Series (K Filter) | Standard Stitched F7 Filter |
|---|---|---|
| Media Type | Thermally Bonded Synthetic | Glued or Resinated Fiber |
| Sealing Method | Sonic Weld (No Leakage) | Stitched (Potential Bypass) |
| Airflow Stability | Excellent (Aerodynamic Channels) | Moderate (Possible Clumping) |
| Target Contaminants | Fine Dust, Bacteria, Fungi, Smoke | General Dust only |
| Energy Impact | Low (Optimized Inflation) | Higher (Uneven Media Use) |
| Technical Specification | Feature |
|---|---|
| Filter Media: Pure Synthetic fiber melt blown | No pull away from the frame |
| Frame: Galvanized steel, PVC , Aluminium or SS304 | Low start pressure drops |
| Bag Depth: Standard 300,360,380,500,535,600,635 | High dust holding capacity |
| Filter Class: ePM2.5 | Reduced operating cost |
| (Old – EN779:2012-G4) | Provides long service life |
| Max. Operating Temperature: 80°C | Low energy consumption’s |
| Recommended pressuredrop: 65Pa * | Light weight |
| Maximum final pressure drop: 450Pa | |
| Standards UL 900 | |
| Removes Particles Down To 0.3 to 2.5 microns | |
| (*8pocket bag filter standard size) |
Frequently Asked Questions (FAQ)
1: What does “ePM2.5 65%” mean compared to the old F7 rating?
A: Under the ISO 16890 standard, ePM2.5 65% is the modern equivalent of the F7 rating. It means the filter is lab-proven to capture at least 65% of all particulate matter sized 2.5 microns and smaller (which includes fine dust, smoke, and some bacteria).
2: Why is the Pak Bag 65 Series better for airports and metro stations?
A: These environments have very turbulent airflow. Traditional glass-fiber filters can shed fibers or tear under this stress. Our thermally bonded synthetic fibers and sonically welded seams are incredibly resilient, ensuring the filter remains intact even in high-vibration transit zones.
3: Can these filters be used in the high-humidity climates of Asia and Africa?
A: Yes. Unlike glass-fiber or cardboard-based filters, our synthetic multi-layer media is naturally moisture-resistant. It will not lose its shape or support the growth of fungi/mold in humid environments.
4: Do you provide custom-made dimensions for older hotel HVAC systems?
A: Absolutely. We understand that many hotels in Europe and Asia have unique AHU dimensions. K Filter can manufacture the Pak Bag 65 series to your exact size specifications to ensure a perfect, airtight fit.
5: How does the “Sonic Seal” benefit healthcare facilities?
A: In a hospital, a single leak can compromise a sterile zone. Our sonic-sealed pockets eliminate needle holes, providing a 100% leak-free seal that ensures every cubic meter of air is fully treated before entering the room.
