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Terra Part #PriceShips in
1 FFU 6605-60 77485 $1,5551-3 Days2
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2 FFU's 6605-61 77486 $2,5435-9 Days3
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Up to 30-day trial periods, free return shipping and on-site training available for qualified equipment.

Request demo from your product specialist or add note to your order or quote request.

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Custom-configured product: Terra will quote.
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Product Details

• HEPA filters help capture many bacteria and viruses such as COVID-19 to reduce risk of infection

• Portable base stand safely mounts cleanroom FFU’s above floor for horizontal laminar airflow

• Horizontal flow wall module is ideal when ceiling space is unavailable or overhead system unsuitable

• Versatile horizontal FFU system can be customized for compatibility with most Terra FFU’s

• Includes adjustable leveling feet for optimal stability, optional casters for increased mobility

• Portable horizontal flow module easily disassembles for transportation or space saving storage.

• HEPA or ULPA fan/filter units (FFU’s) provide micro-filtered class 100 laminar airflow to protect sensitive materials, equipment, or personnel from airborne particulates and contaminants.

• Economical alternative to a laminar flow hood, suitable for mitigating airborne contamination in semi-sterile operations such as food processing.

Base Stand:

• The FFU base stand can serve as a horizontal flow wall module, compatible with many cleanroom applications that require positive laminar airflow.

• Simply position the module to supply clean horizontal laminar airflow into a room, or enclosure.

• It can also be positioned next to sensitive equipment or materials that are mounted close to the floor.

• Custom stands can be built for specific applications - call or chat with a product specialist for details.

• All materials are non-shedding and cleanroom-compatible.

Fan Filter Unit:

• High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3µm particle diameter.

• AC 3-speed blower motor.

• FDA-approved silicone sealant.

• Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face.

• 1/4-20 UNC threaded inserts on corners to allow suspension by guy-wires.

• MERV 7 pre-filter, 30% ASHRAE rated.

• Low-profile design is ideal for cleanrooms with limited ceiling space.

• Removable yellow power cord with 4-pin connector for easy installation to Terra cleanrooms (connector may be used with the included wall plug adapter; or may be removed entirely to hard-wire the FFU).

• Filters are leak tested in accordance with IEST standards and meet UL 900.

See performance data and submittal sheets for additional information

Optional Accessories:

• Challenge port kit

• 12” ducted inlet connection adapter

• Replacement filter

• Filter replacement alarm

• Ionizing bar

• Pre-filter safety cover, for CE conformance

• Control panel with night mode switch and power distribution modules

• All filter sales are final; returns for this item cannot be accepted

For negative pressure (exhaust): Choose a reverse flow FFU design to use in exhaust applications such as an isolation room. Flexible ducting can be connected to the exhaust flange of the reverse flow FFU to direct exhaust through a window or wall

Fan Filter Units

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
  • COVID-19 Contamination Control Products by Terra Universal
Terra Universal WhisperFlow® Filter Fan Units

Features & Benefits

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.

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.

Horizontal Flow Module Ideal When Overhead System is Unsuitable

Horizontal flow wall modules are ideal when ceiling space is unavailable or an overhead system is unsuitable. The portable base stand safely supports the FFU’s above the floor for easy maintenance.

WhisperFlow Quiet Operation Reduces Distracting Background Noise

Exposure to loud noises can lower the ability to focus on work and listen selectively, which may also lead to safety issues. Typical AC units can be annoyingly loud, measuring in the range of 70 dB (comparable to a vacuum cleaner). Terra’s WhisperFlow design produces far lower noise levels for a quiet environment comparable to a library. At 90 ft/min output, units measure under 50 dB from only 1 ft away (roughly 75% quieter than 70dB).

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.

Quick-Connect Fittings

FFUs and lights can be easily added as cleanrooms requirements change, or disconnected for maintenance, without the need to run additional power lines or involve an electrician.

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).

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

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Manuals & Resources

Manuals & Resources

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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