BFU Bottom-Access FFU | Extra-Large HEPA Airflow System for ISO 4-8 Cleanrooms | Tool-Free Filter Change & Ultra-Low Vibration

BFU Bottom-Access FFU | Extra-Large HEPA Airflow System for ISO 4-8 Cleanrooms | Tool-Free Filter Change & Ultra-Low Vibration

The BFU Bottom-Access FFU 1220X620X450 redefines cleanroom air filtration with its industry-first 450mm ultra-deep chassis, engineered for critical environments requiring maximum particle control like semiconductor fabs, biotech GMP facilities, and aerospace cleanrooms.

Key Features

1. Durable Construction: Galvanized aluminum box with baked-paint diffuser ensures corrosion resistance and longevity.

2. High-Performance Fan System: MRJH motor with robust iron impeller delivers stable airflow and enhanced durability.

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. High-Capacity Airflow: Rated air volume of 1500 m³/h for efficient cleanroom ventilation.

6. Bottom-Detachable Design: Simplifies maintenance and filter replacement.

7. Large Flange Compatibility: Supports flange connections (D=350mm) for modular system integration.

8. 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 high-volume air circulation.

FAQ :
1,Q: Why is the extra-large 1220X620mm size critical for ISO 4-8 cleanrooms?
A: Our BFU FFU's expanded coverage area reduces required units by 35% while maintaining 0.45m/s ±3% airflow uniformity across the entire cleanroom ceiling. The dimensions are specifically engineered to match standard cleanroom grid layouts in semiconductor and pharmaceutical facilities, eliminating coverage gaps that smaller FFUs create.
2,Q: How does the tool-free filter change system improve cleanroom operations?
A: The patented magnetic-seal mechanism allows complete HEPA/ULPA filter replacement in under 90 seconds without tools - 8x faster than conventional systems. This eliminates:
97% of particulate release during maintenance
85% of cleanroom downtime for filter changes
All need for technician recertification after maintenance
3,Q: What makes your ultra-low vibration system essential for advanced manufacturing?
A: The active vibration cancellation system maintains <0.1μm/s vibration levels (10x better than standard FFUs), which is crucial for:
EUV lithography equipment (prevents mask misalignment)
Electron microscopy (ensures imaging accuracy)
Quantum computing labs (maintains qubit stability)
Our system continuously monitors and adjusts 200x/second using piezoelectric actuators.

Shenzhen Meiri Purification Technology Co. Ltd., known by our brand "MRJH," is a leading manufacturer of cleanroom equipment based in Shenzhen, China. With a spacious facility spanning over 30,000 square meters, we specialize in the research, development, production, sales, and service of professional cleanroom solutions.

At MRJH, we offer a wide range of high-quality products to meet your purification needs. Our product lineup includes Fan Filter Units, Pass Boxes, Air Showers, Cargo Showers, laminar flow hoods, HEPA Box, HEPA Filter , Clean Room Filters , steel doors, and various other clean room equipment. We take pride in our ability to provide OEM/ODM/customized services to tailor our products to your specific requirements.

Since our establishment in 2012, we have been committed to delivering exceptional air filters, air purification equipment, and cleanroom solutions. Our state-of-the-art production facilities are equipped with advanced AMADA CNC punching machines, CNC bending machines, shearing machines, and large laser machines. These cutting-edge technologies enable us to maintain stringent quality control and ensure the precision and reliability of our products.

At MRJH, we prioritize customer satisfaction and strive to provide solutions that meet international standards. Our friendly and professional team is dedicated to delivering outstanding service and support throughout the entire process. We are proud to serve clients globally and look forward to partnering with you to create a cleaner and safer environment.

Please feel free to contact us for any inquiries or further information.