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Includes heating element to provide safe, controlled heating up to 100 degrees F maximum. Internal diffuser panel provides uniform air speed across the filter f | 6601-22-UT displayed
Sound level is approximately 49 dBA, at average air flow velocity of 90 FPM. ( 0.46 m/s)
1/4 ( 6 mm) -20 threaded holes in top corners accommodate eyebolts to facilitate installation using suspended guy wires (order eye bolt package separately)
Purchase optional Challenge Port Kit separately
Includes yellow power cord with 4-pin connector for easy installation to Terra cleanrooms and hoods (connector may be removed and replaced with plug for connection to wall outlet)
220V 50HZ Units available
Ideal for drying applications in a laminar flow hood
Order Replacement Filter separately
Filter includes aluminum frame with anodized aluminum filter face grille; all-stainless steel model available
All filter sales are final; returns of this item cannot be accepted
All FFU data is based on a standalone unit using 1" prefilter and clean filters.
Data will vary depending on filter media and configurations with other products/systems, such as ductwork or hoods.
• Dimensions, Product: 23.63"W x 23.63"D x 12.51"H
• Weight, Shipping: 64 lb
• Dimensions, Shipping: 53"W x 53"D x 20"H
• Package Type: Palletized
Fan Filter Units
Terra Universal WhisperFlow® Filter Fan Units
Heated Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)
Overview video of Terra Universal's comprehensive portfolio of filter fan unitsTerra Universal WhisperFlow® Filter Fan UnitsOverview video of Terra Universal's comprehensive portfolio of filter fan units
Heated Room-Side Replaceable (RSR) WhisperFlow™ Fan/Filter Units provide a uniform flow of heated ULPA-filtered air for parts drying | 6601-24-URT displayedHeated Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)Heated Room-Side Replaceable WhisperFlow Fan Filter Units (FFUs) provides a uniform flow of heated ULPA-filtered air for parts drying, biocompatability testing and other operations at above-ambient temperatures; filter can be serviced from inside the room to prevent the need for cleanroom shut-down.
Features and Benefits
Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity
Unlike other manufacturers, Terra’s FFUs include a unique perforated panel beneath the filter, acting as a shower head, to guarantee filter protection and laminar air flow uniformity, which prevents localized air swirling, particle build-up and turbulence.
Protect Against Contaminants and Pathogens
HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures
Website Metric Conversion Tool
Easily convert any product specification to metric units of measure using Terra's web-based metric conversion tool
Network of International Reps
Terra employs an international network of more than 20 local sales reps trained to provide comprehensive service on Terra's complete catalog of products
Products Compliant With Your ISO Rating
High-capacity, durable, ISO-compliant system rated for thousands of operating hours.
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
Cord Adapter, MIN4 PL to 16AWG Power Cord for Terra Fan/Filter Unit
Four-pin power cord adapter for fan/filter unit allows connection to standard 120VAC/60Hz power receptacle.
Ionizing Bar; 22"L, with Installation Kit, for 24 x 24 Fan/Filter Unit
Ionizing bar, mounted to Fan/Filter Unit, provides a balanced stream of ions to the work area below to neutralize static charge and prevent electro-static discharge; 22" bar shown installed on 2' x 2' FFU.
FFU Mounting Frame; Stainless Steel
Stainless steel Fan Filter Unit (FFU) mounting frame supports FFU on drywall or other rigid ceiling material, viewed from above ceiling panel (FFU not included).
Night Service Saves Energy, Extends Filter Life!
Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
Filter Replacement Alarm
The filter replacement alarm monitors filter backpressure and issues an alarm when filter needs replaced (requires selection of fan filter unit with challenge port, order separately).
Fan Filter Unit Control System
Provides room-by-room monitoring and control of Smart WhisperFlow FFUs to maintain target pressure differentials for ISO classification; temperature, humidity and particle monitoring and data logging, as well as dynamic fan set-point control, also available.
Power Distribution Modules for Cleanroom FFUs and Lights
UL-listed power distribution modules include all breakers, transformers and other electrical components for FFU/light connections; allows fast addition or relocation of FFUs or lights without the need for rewiring.
Challenge Port for Fan Filter Unit
Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown with optional pressure gauge; must be ordered with FFU).
