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What is the difference between FFU and HEPA?

2025-07-11

Latest company case about What is the difference between FFU and HEPA?

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.