BFU Bottom-Access FFU| Easy-Maintenance HEPA System for Hospital ORs & Microelectronics Labs | Compact & Vibration-Free Design

The BFU Bottom-Access FFU 620X620X350 revolutionizes cleanroom maintenance with its ground-breaking bottom-access panel design, specifically engineered for high-frequency filter replacement environments like hospital operating rooms, microelectronics assembly lines, and ISO Class 4-6 clean zones. Its 620x620x350mm compact footprint integrates seamlessly into space-constrained ceilings while delivering 360 m³/h airflow with ultra-low turbulence.

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. Optional Connectivity: Supports flange connections (D=25mm) and group control modules for 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 modular installation (flange compatibility) and easy maintenance.

FAQ :
1. How does the bottom-access design simplify HEPA filter maintenance in sterile environments like ORs?
The tool-free, bottom-loading mechanism allows single-person filter replacement without dismantling the unit or disrupting laminar airflow – critical for maintaining ISO Class 5 conditions during surgeries or microelectronics production.
2. What makes this FFU suitable for vibration-sensitive applications like semiconductor metrology?
Featuring a brushless DC motor with G2.5 dynamic balance and <3µm vibration levels, it eliminates interference with sensitive equipment (e.g., electron microscopes or lithography tools) while operating at <50dB.
3. Can the compact 575x575x250mm frame integrate with existing cleanroom grids?
Yes, it supports:
Drop-in installation for standard 2'x2' T-bar ceilings
Flange-less sealing to prevent particle leakage
Optional 1200x600mm adapters for ISO 14644-1 recertification

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.