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2' x 4' aluminum fan filter unit with HEPA filter and energy-efficient, smart EC motor with network connection for cleanrooms | 6601-24-H-EC-CF displayed
Available Certified ISO Grade Designs: ISO 7, ISO 8
Constant airflow design dynamically adjusts for changes in static pressure, filter load, and other conditions to maintain set airflow
Electrically commutated (EC), high-efficiency motor regulates torque and speed to provide consistent air volume
EC motor shows high performance at low energy requirements at only 235 watts at average speed
Internal baffling plates and diffuser panel provide uniform air speed across the filter face, ensuring laminar airflow
• Type: Constant Flow
• Material: Aluminum
• Filter Replacement Access: Top Side
• Size: 2'x4'
• Filter Frame Material: Aluminum
• Filter Type: HEPA
• Filter: HEPA
• Motor Type: Electronically Commutated (EC)
• Airflow: Positive Pressure
• Speed Control: Universal Control Card
• Blower Type: Forward Curved
• Active Filter Face Area: 7.2 ft²
• FFU Control: Automatic
• Unit of Measure: EA
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Warranty: 1 year parts, 90 days labor
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Summary
Available Certified ISO Grade Designs: ISO 7, ISO 8
Constant airflow design dynamically adjusts for changes in static pressure, filter load, and other conditions to maintain set airflow
Electrically commutated (EC), high-efficiency motor regulates torque and speed to provide consistent air volume
EC motor shows high performance at low energy requirements at only 235 watts at average speed
Internal baffling plates and diffuser panel provide uniform air speed across the filter face, ensuring laminar airflow
Finger guard-protected inlet to protect users and the equipment
1/4" ( 6 mm) -20 threaded holes in top corners accommodate eyebolts to facilitate installation using suspended guy wires (order eye bolt package separately)
• Dimensions, Product: 23.63" W x 47.63" D x 14.32" H
Features and Benefits
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
Gel-Filled Channel on Room-Side Replaceable Filter
Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.
Airflow Uniformity Improves Laminar Flow
Non-uniform air speeds produce turbulence that can recirculate particles into the air stream. Unique WhisperFlow® FFU baffling system and anodized diffuser plate promotes uniform laminar airflow to minimize turbulence and effectively carry away contaminating particles.
Full Range of Designs, Configurations!
WhisperFlow FFUs come in all styles: room-side replaceable, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more (shown: vapor filtration module with UV sanitation lamp).
Smart Fan Filter Unit with EC Motor
Smart WhisperFlow® Fan Filter Units are quiet, energy-efficient and easily adjustable, either manually or via automatic smart console, for centralized fan speed control and cleanroom pressure balancing.
Catalog of CE-Marked Products
Terra offers over 1,700 CE-marked products configured for international voltage requirements
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
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.
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).
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.
Challenge Port; for Fan/Filter Unit
Challenge port for Fan/Filter Units simplifies filter leak testing and connection of Filter Backpressure Alarm (shown mounted on SS FFU, order separately).
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.
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.
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).
Filter Covers Allow Ceiling Wash-Down
Ceiling panel covers allow wash-down and sterilization of cleanroom walls and ceilings without damage to filter medium; requires BioSafe glass or stainless steel wall panels, which stand up to biocides.
Safely Mount FFU’s Above Floor for Horizontal Laminar Airflow
The portable FFU base stand can be easily positioned to supply Class 100 horizontal laminar flow into a room or enclosure. It can also be positioned next to sensitive equipment/materials that are mounted close to the floor.
Copyright 1999 - 2026 Terra Universal. Inc. All rights reserved.
