RFDC – Radial Flow Diffuser With HEPA Filter

RFDC – Radial Flow Diffuser With HEPA Filter
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RFDC – Radial Flow Diffuser With HEPA Filter


The Radial Flow Diffuser with HEPA Filter (RFDC)’s patented construction is designed to deliver large volumes of filtered air with extremely short throws to minimize velocity in critical applications. Ideal for use in laboratories, the RFDC is able to provide large volumes of make-up air without adversely impacting containment at fume hoods. 

Typical Applications
The RFDC is commonly used in laboratories and airborne infectious isolation rooms where short throw and high capacity, filtered airflow are required. These diffusers are able to provide a high level of dilution while maintaining occupant comfort with a minimal number of diffusers. The RFDC is a combination of ASHRAE group A and group E diffusers and meets ASHRAE 170 requirements for the ventilation of healthcare facilities.

Construction Options

  • Material
    • Aluminum (RFDC)
    • Stainless steel (RFDCSS)
  • Options
    • Room-side adjustable damper
    • Aerosol test system
    • Exterior insulation

Available filter efficiencies:
HE           95% at 0.3 μm
HEPA      99.99% at 0.3 μm
ULPA      99.999% at 0.12 μm