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BFU Bottom-Access FFU | Large-Capacity HEPA Filtration System for ISO Cleanrooms | Tool-Free Filter Replacement & Energy Efficient
The BFU Bottom-Access FFU 1220X620X350 is a high-performance, large-capacity fan filter unit designed for ISO Class 3-6 cleanrooms in industries like pharmaceutical manufacturing, biotechnology, and precision electronics. Featuring an innovative bottom-access design, this FFU allows for quick and tool-free HEPA filter replacement, significantly reducing maintenance downtime and labor costs.
Parameter Name | Value |
Material | Box: Galvanized aluminum plate; Diffuser: Baked-paint cold plate |
Fan System | MRJH motor + metal impeller |
Filtration | Aluminum frame HEPA filter (1170×570×69), Efficiency: 99.99% @0.3μm (H13) |
Air Speed | 0.45–0.75 m/s ±3% (three-speed adjustable) |
Noise Level | 46–55 dB ±5 dB (static test 1.5m below filter) |
Power Supply | 220V/50Hz, Rated Power: 150W–190W ±5W |
Flange Connection | Optional D=350mm |
Opening Size | Color steel plate: 1225×625 mm |
Vibration | ≤5μm peak |
size | 1220X620X350(mm) |
Certifications | ISO 14644-1,ISO 9001,CE |
Key Features
>1. >Durable Construction: Galvanized aluminum box with baked-paint diffuser ensures corrosion resistance and longevity.
>2. >Efficient Fan System: MRJH motor paired with a metal impeller delivers stable airflow and ultra-low noise.
>3. >Precision Airflow Control: Three-speed adjustable wind speed (0.45–0.75 m/s ±3%) for flexible cleanroom requirements.
>4. >H13 Filtration: Non-partition HEPA filter achieves 99.99% efficiency at 0.3μm particles.
>5. >Bottom-Detachable Design: Simplifies maintenance and filter replacement.
>6. >Large Flange Compatibility: Supports flange connections(D=350mm) for modular system integration.
>7. >Low Noise: Engineered for 46–55 dB (±5 dB) operation at 1.5m below the filter.
Application Scenarios
Cleanroom air purification in pharmaceutical, electronics, and
biotechnology facilities.
Manufacturing zones requiring ISO-certified H13 filtration with
precise airflow control.
Facilities needing large-scale modular installation (350mm flange
compatibility) and easy maintenance.
FAQ :
1,Q: What makes the BFU Bottom-Access FFU ideal for ISO Class 3-6
cleanrooms?
A: This FFU combines large-capacity HEPA filtration (H13/H14,
99.95–99.995% @ 0.3µm) with a 1220x620mm airflow footprint,
ensuring uniform ISO compliance in pharmaceutical and semiconductor
facilities. Its bottom-access design allows maintenance without
disrupting laminar airflow—critical for high-cleanliness zones.
2,Q: How does the tool-free filter replacement work, and what are
the time savings?
A: The patented bottom-access panel eliminates ceiling dismantling.
Replace filters in under 5 minutes (vs. 30+ minutes for traditional
FFUs), reducing labor costs by 60%. A slide-lock mechanism ensures
airtight resealing post-maintenance.
3,Q: Can this energy-efficient FFU integrate with existing
cleanroom HVAC systems?
A: Yes, the EC motor’s Modbus RTU/PROFINET compatibility allows
seamless BMS integration. Real-time airflow adjustments cut energy
use by 30% while maintaining ISO airflow velocity standards (0.45
m/s ±10%).