Select Product Options

Voltage Material Size Filter Filter Replacement Access ISO Class Price Usually Ships in Stocked
120/230 V Powder-Coated Steel 2'x4' HEPA Top Side ISO 5 $2,903 0-2 Days Stocked
120/230 V Stainless Steel 2'x4' ULPA Top Side ISO 4 $4,514 1-3 Days Stocked

Summary

  • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
  • Energy efficient Smart FFU with integrated UPS battery system arrives fully assembled, ready for use
  • High-capacity, durable, ISO-compliant system rated for thousands of operating hours
  • Handy and convenient Uninterruptible Power Supply (UPS) provides power when and where you need it, battery system provides approximately 1-2 hr runtime depending on FFU speed setting
  • EC motor offers high performance, low energy consumption, and low noise levels (40 dB)
  • Suitable for mobile transport or applications that require protection from unexpected power outages
  • Ships in 120V configuration. Can be easily be reconfigured to 230V
  • Uninterruptible Power Supply (UPS) battery system:
  • UPS systems provide a backup battery-power supply that keeps critical equipment running without interruption when utility power supply is unavailable.
  • UPS System includes main UPS plus an add-on external rechargeable battery pack for longer runtimes.
  • Fully assembled plug-and-play design speeds up installation. No time-consuming connection of internal batteries by user required.
  • Intelligent battery management system extends battery life.
  • Estimated Runtimes:
  • 180W Load: 123 minutes.
  • 350W Load (max speed): 55 minutes.
  • NOTE: All estimates based on new, fully charged batteries under typical office environmental conditions.
  • Front panel LEDs alert you to a variety of performance conditions, including AC line present, automatic voltage regulation, UPS load level and replace battery.
  • External battery can be ā€œhot-swappedā€ (safely removed or swapped without shutting down the UPS).
  • For Power Outages: UPS Protects against all types of power problems including blackouts, brownouts, surges and line noise. In the event of a power outage, the UPS immediately activates without interruption. The UPS keeps your FFU running long enough to either: (1) safely store away contamination-sensitive materials and works-in-progress before shutting down operations, or (2) switch to a back-up power generator.
  • For Mobile Applications: Use the UPS to create a mobile battery-powered cleanroom on wheels to safely transport sterile materials through a dirty space. The UPS provides adequate time to transfer out of one cleanroom and relocate to another cleanroom in a different part of the facility. With the FFU mounted on top of the cabinet, the battery-powered system supplies uniform HEPA-filtered air flow to prevent airborne contamination while moving the cabinet through a dirty environment. Once the cart arrives at its destination, simply plug the system back into a wall outlet to recharge the batteries.
  • SmartĀ® EC FFU:
  • High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3Āµm particle diameter.
  • Electronically commutated (EC) brushless motor with internal microprocessor. EC motor offers high performance, low energy consumption and low noise levels (40 dB).
  • MODBUSĀ® networking control card with closed-loop control capability supports air pressure, air flow, and particle count sensors.
  • Motor control panel includes diagnostic indicator lights, manual speed adjustment, test probe jacks, CAT5e ports, control mode switch, and MODBUSĀ® address DIP switch bank.
  • FDA-approved silicone sealant minimizes leaks for improved efficiency. It is also food-grade and resistant to a wide variety of chemicals and environments for a long service life.
  • Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face.
  • Filters are leak tested in accordance with IEST standards and meet UL 900.
  • Includes MERV 7 pre-filter to extend service life of HEPA filter.
  • See performance data and submittal sheets for additional information.
  • Optional Accessories: challenge port kit, power plug adapter, replacement filter, filter replacement alarm, ionizing bar, pre-filter safety cover for CE conformance.
  • All filter sales are final; returns for this item cannot be accepted.

Specifications

Helena

ā€¢ Marks & Listings: CE, UL, ULC

Fan Filter Units

  • Terra Universal WhisperFlowĀ® Filter Fan Units Terra Universal WhisperFlowĀ® Filter Fan Units
Terra Universal WhisperFlowĀ® Filter Fan Units

Features and Benefits

Diffuser Panel Promotes Air Flow Uniformity and Protects Filter Integrity

Unlike other manufacturers, Terraā€™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.

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).

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.
  • Energy-Efficient Lighting

    Energy-efficient LED lighting panels and strips help to lower electrical costs and minimize heat build-up in temperature-controlled environments.
  • 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.
  • 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.
  • Safely Mount FFUā€™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.
  • Replacement Filters

    Purchase replacement filters ahead of time to prevent costly operational interruptions and avoid damage to fan blowers caused by excessive backpressure from long overdue filter replacements.
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