Terra Part # 6601-22-URT-220
$2,822
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68569
Fan Filter Unit; Heated, RSR, 2'x2', ULPA, 240 V, Powder-Coated Steel, WhisperFlow
  • Includes AC variable speed blower motor
  • Includes FDA-approved silicone sealant
  • Includes heating element to provide safe, controlled heating up to 100 degrees F maximum
  • Internal diffuser panel provides uniform air speed across the filter face
  • ULPA Filter: 99.999% efficient Ultra-Low Penetration Air, rated at particles 0.12µm diameter
  • Removable filter accessible from inside hood/cleanroom for easy replacement or servicing
  • Operating Ratings(High Speed/Medium Speed/Low Speed):
  • Average CFM (m^3/hr) 578 (982.03) 558 (948.05) 544 (924.26)
  • Air Flow - FPM (m/s) 172 (.87) 166 (.84) 162 (.82) (measured 6” (132mm) below filter face)
  • 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)
  • 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.

Type: Heated, RSR

Material: Powder-Coated Steel

Filter Replacement Access: Room-Side

Size: 2'x2'

Filter Frame Material: Aluminum

Filter: ULPA

Motor Type: Permanent Split capacitor (PSC)

Airflow: Positive Pressure

Special Application: Heated

Unit of Measure: EA

Electrical Specifications: 240 V, 2.24 A, 492.8 W, 50/60 Hz

Weight, Product: 44 Lbs

Dimensions, Product: 23.63"W x 23.63"D x 15"H

Weight, Shipping: 64 lb

Dimensions, Shipping: 53"W x 53"D x 20"H

Package Type: Palletized

Manuals & Resources

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  1. Safely neutralizes surface charges to protect against electro-static discharge (ESD) | 2005-06A displayed
    $766
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  2. 2’x2’ perforated 304 stainless steel, 12 gauge screen for room-side-replaceable fan filter unit | 6601-62 displayed
    $126
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  3. Holds fan filter units secure in rigid ceilings without a T-bar grid. | 6604-00 displayed
    $448
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  4. Cable Extension, PVC, 4 Poles, 5M, 22awg, 300V, straight male to straight female with close-up | 6601-39 displayed
    $80
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  5. Simplifies filter leak testing and connection of Filter Backpressure Alarm | 6601-99 displayed
    $99
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  6. Eyebolt with 1/4"-20 thread for lifting FFUs | 6601-02 displayed
    $25
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  7. Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours | 6601-70 displayed
    $163
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  8. FFU Connect pack includes flexible ducting and all hardware required to connect and seal the duct. | 6601-01 displayed
    $224
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  9. FFU Testing and Certification; Flow Rate and Filter integrity
    Request Quote
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  10. FasTrak 24-7 Expediting Service
    Request Quote
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  11. MERV 7 pre-filter for Terra Fan Filter Units (FFUs) | 6601-34 displayed
    $182
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Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
  • Heated Room Side Replaceable Fan Filter Units (FFUs) Heated Room Side Replaceable WhisperFlow® Fan Filter Units (FFUs)
Terra Universal WhisperFlow® Filter Fan Units

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 mesure 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

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.
  • 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.
  • 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).

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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