What is the difference between FFU and HEPA?
Created on 07.11
Introduction: Two Essential Components of Cleanroom Systems
While FFU (Fan Filter Unit) and HEPA (High Efficiency Particulate Air) filters are both critical for maintaining clean environments, they serve fundamentally different purposes in air filtration systems. Our factory specializes in manufacturing advanced FFU systems that incorporate HEPA filtration technology - let's examine how these components differ and work together.
Fundamental Differences Between FFU and HEPA
HEPA Filters: The Filtration Component
Definition: A standardized filter media that removes 99.97% of particles ≥0.3μm
Function: Passive filtration element only (requires air movement mechanism)
Standards: Classified under EN 1822 or IEST-RP-CC001
FFU Systems: Complete Air Delivery Solution
Definition: Self-contained air recirculation unit with integrated fan and filter
Function: Actively moves and filters air in controlled environments
Standards: Evaluated as complete systems (e.g., IEST-RP-CC007)
Our FFU-GCC1000: Where FFU and HEPA Technology Merge
Integrated System Features
HEPA Filtration: 99.999% efficiency at 0.3μm (exceeds standard HEPA)
Active Air Movement: Direct-drive centrifugal fan maintains 0.45m/s±20% face velocity
Complete Package: Combines housing, fan, controls and filtration in one unit
Technical Comparison Table
Characteristic | Standalone HEPA Filter | Our FFU-GCC1000 System |
Air Movement | Requires external fan | Integrated fan system |
Filtration Efficiency | 99.97%@0.3μm | 99.999%@0.3μm |
Velocity Control | Not applicable | 0.45m/s±20% regulated |
Installation | Needs separate housing | Complete ready-to-use unit |
Maintenance | Filter replacement only | Comprehensive system care |
Typical Use | HVAC terminal filtration | Cleanroom air recirculation |
Key Advantages of Choosing Complete FFU Systems
1. Performance Guarantees
Maintains constant airflow (1000 m³/h) despite filter loading
Delivers uniform laminar flow across entire work surface
Certified to Federal Standard 209E Class 100 requirements
2. Operational Benefits
30,000+ hour fan life with maintenance-free operation
Stepless speed control adapts to changing conditions
≤62 dB noise level for quieter work environments
3. Design Flexibility
Modular design allows single or multiple unit configurations
Optional ULPA filters for ultra-clean applications
Choice of stainless steel or powder-coated housings
When to Choose Standalone HEPA vs. Complete FFU
Standalone HEPA Filters Are Ideal For:
Existing HVAC system upgrades
Non-critical filtration applications
Budget-conscious projects with space for separate components
Our FFU Systems Excel In:
Critical cleanroom environments
Processes requiring guaranteed air velocity
Applications needing plug-and-play simplicity
Facilities valuing energy efficiency (50%+ savings available)
Technical Specifications of Our FFU Solution
Model: FFU-GCC1000
Dimensions: 1175×570×230mm (housing), 1170×570×69mm (filter)
Airflow: 1000 m³/h at 0.45m/s face velocity
Construction: Galvanized aluminum-zinc alloy
Power: 120-130W @ 220V/50Hz
Special Options: DC motor, ULPA filters, round duct connections
Conclusion: Complementary Technologies for Clean Air
While HEPA filters provide the essential filtration media, FFU systems like our FFU-GCC1000 deliver complete, optimized air cleaning solutions. By integrating high-performance fans with superior filtration in a single engineered package, our FFUs ensure reliable, efficient clean air delivery for your most critical environments.
For assistance selecting the right clean air solution for your application, contact our technical team to discuss your specific requirements and explore our range of standard and customized options.
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