Fan Filter Unit, WhisperFlow, RSR, 2'x3', HEPA, 120 V, Powder-Coated Steel, Terra Universal (CAT#: STEM-C-0025-ZJF)

The WhisperFlow® Fan Filter Unit 6601-23A-HR manufactured by Terra Universal provides a steady laminar flow stream of HEPA filtered air to the area below the mounted unit.
Please note that this unit is not full seam welded. If a leak test is required, full seam welded units leak-tested to meet ISO 14644-3 are optionally available.
High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3µm particle diameter.
AC 3-speed blower motor makes it easy to realize low, medium and high speed wind speed regulation.
FDA-approved silicone sealant has good sealing, high safety and durability.
Room-Side Replaceable (RSR) design and easy-open clips make it possible to replace the filter fast and convenient from inside the room without damaging the clean room, reducing maintenance time and cost.
Gel-sealed filter seats rest firmly against the blade on the fan housing.
Filter shipped uninstalled to prevent leakage caused by movement of the mounting gel.
Internal baffling plate and diffuser panel make the air flow quiet and even.
Threaded (1/4-20 UNC) inserts on corners make the unit easy to hang and mount.
MERV 7 pre-filter which is 30% ASHRAE rated helps to extend the service life of HEPA filter.
Low-profile design is compact and takes up less space, ideal for cleanrooms with limited ceiling space.
Removable yellow power cord with 4-pin connector guarantee the convenience and soundness of the unit's installation to cleanrooms.
Filters are leak tested in accordance with IEST standards and meet UL 900.

Type: WhisperFlow, RSR
Material: Powder-Coated Steel
Filter Replacement Access: Room-Side
Size: 2'x3'
Filter Frame Material: Aluminum
Filter: HEPA
Motor Type: Permanent Split capacitor (PSC)
Motor HP: 1/4 hp
Airflow: Positive Pressure
Speed Control: 3-Speed Switch
Blower Type: Forward Curved
Active Filter Face Area: 5.3 ft²
Pre-Filter: MERV 7
Unit of Measure: EA
Marks & Listings: UL, ULC
Electrical Specifications: 120 V, 3.8 A, 1 Ph, 60 Hz
Weight, Product: 53 lb
Dimensions, Product: 23.63"W x 35.63"D x 15"H
Weight, Shipping: 116 lb
Dimensions, Shipping: 25" W x 50" D x 27" H
Package Type: Palletized
Warranty: 1 year parts, 90 days labor
Optional Accessories:
Challenge port kit
Power plug adapter
Stainless surface mount frame for installing FFU in ceiling without T-grid
12" ducted inlet connection adapter
Replacement filter
Filter replacement alarm
Eye bolt package
Ionizing bar
Pre-filter safety cover, for CE conformance
Control panel with night mode switch and power distribution modules

Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity: Unlike other manufacturers, Terra's FFUs use a unique perforated panel like a shower head beneath the filter, to protect the filter and make laminar air flow more uniform by preventing localized air swirling, particle build-up and turbulence.
Gel-Filled Channel on Room-Side Replaceable Filter: Gel-filled channel on room-side replaceable filter creates a closed passageway, so it allows the filter to be changed easily, safely and quickly during the operation of the fan filter unit.
Protect Against Contaminants and Pathogens: HEPA and ULPA filters help capture many bacteria, viruses (COVID-19), and mold spores.
Airflow Uniformity Improves Laminar Flow: Unique WhisperFlow® FFU baffling system and anodized diffuser plate minimize turbulence and effectively carry away contaminating particles by making laminar airflow more uniform.
Full Range of Designs, Configurations: WhisperFlow FFUs have various styles: room-side replaceable, all-stainless steel, HEPA or ULPA filtration, EC energy-saving fans, reverse flow and more.
WhisperFlow Quiet Operation Reduces Distracting Background Noise: Noise can reduce concentration at work and even lead to safety accidents. Unlike other AC units with 70 dB of noise, Terra's WhisperFlow design has library-level noise levels. At 90 ft/min output, units measure under 50 dB from only 1 ft away (roughly 75% quieter than 70dB).
Wide Selection of Global Shipping Options: Terra offers a broad range of global shipping services including door-to-door and white glove delivery.
Catalog of CE-Marked Products: Terra offers over 1,700 CE-marked products configured for international voltage requirements.

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