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Fan Filter Units (FFUs), Lights, Ionizers
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Fan/Filter Units provide the micro-filtered airstream that controls particulate contamination in a cleanroom or laminar flow clean bench. Terra's comprehensive line includes models based on High-Efficiency Particulate Air (HEPA) filters, rated 99.99% efficient @ 0.3 µm particles, and Ultra Low Penetration Air (ULPA) filters, rated 99.999% efficient @ 0.12 µm particles. Select the lights and other ceiling grid accessories to complete your system.

Fan Filter Units (FFUs) and Controls

WhisperFlow Fan/Filter Unit

WhisperFlow Fan/Filter Unit

WhisperFlow Fan Filter Units are quiet with low-vibration; cleanrooms get a constant uniform airflow to meet strict cleanliness standards

BioSafe® Stainless Steel WhisperFlow™ Fan/Filter Unit

BioSafe® Stainless Steel WhisperFlow™ Fan/Filter Unit

All-stainless steel FFUs, using HEPA or ULPA filters, are designed for strict cleanliness requirements and meet ISO airflow and uniformity standards

Room-Side Replaceable FFU

Room-Side Replaceable FFU

Minimize cleanroom downtime with these easy-to-replace powder-coated or all-stainless steel filter units; direct room access prevents cleanroom breaches

Explosion Proof Fan/Filter Unit

Explosion Proof Fan/Filter Unit

Rest assured with this non-sparking, cast-iron, explosion-proof fan/filter unit; it provides uniform flow of HEPA- or ULPA-filtered air in hazardous locations

Explosion-Proof RSR FFU

Explosion-Proof RSR FFU

NEC hazardous locations that also need to be particle-free, benefit from explosion-proof fan/filter units. Room-side replaceable modules allow in-room access

Smart WhisperFlow ECM Fan Filter Units

Smart WhisperFlow ECM Fan Filter Units

Innovative Fan Filter Units have low-energy, electronically commutated (EC) motors. Unique design uses backward-inclined fans to reduce operating costs

Reverse-Flow Fan/Filter Unit

Reverse-Flow Fan/Filter Unit

Low-profile exhaust FFUs remove sub-micron particles, aerosols and fine dust allowing safe release of HEPA- or ULPA-filtered air without an exhaust system

Vapor Removal & Sanitizing Module

Vapor Removal & Sanitizing Module

Add carbon filtration to your fan/filter unit to attack vapors, and a UV sanitizer to wipe out most biological hazards inside the cleanroom

Ducted Filter Modules

Ducted Filter Modules

Low-profile, roomside replaceable modules provide ducted HEPA or ULPA filtered air when connected to an air handler or other air source

Narrow Fan/Filter Unit

Narrow Fan/Filter Unit

16-inch wide WhisperFlow HEPA fan/filter unit from Terra is a space-saving FFU featuring low noise, low vibration and three speeds for uniform airflow

Heated Fan Filter Units

Heated Fan Filter Units

Integrated heating element warms micro-filtered air for fast, efficient parts drying and other elevated processing

Power Distribution Modules and Control Panels

Power Distribution Modules and Control Panels

Simplify connection of power for lights, fan/filter units and other ceiling modules with this NEC-compliant PDM and energy-saving control system

Wireless Control System

Wireless Control System

Turn off lights and air conditioning system and put fan filter unit in energy-saving mode at the press of a button on your mobile device

Cleanroom Controls

Cleanroom Controls

Versatile control systems provide traceable process conditions for cGMP, FDA, and USP compliance. Monitor and adjust airflow from a central location

Filter Replacement Alarm

Filter Replacement Alarm

Program back-pressure set-point and receive an automated alert when filters need replacing; avoid electrical fire hazards from overworked FFU motors

FFU Challenge Port

FFU Challenge Port

Use the fan/filter unit challenge port to assist with leak testing and help set the filter replacement schedule based on your operational conditions

Ceiling Module Mounting Frame

Ceiling Module Mounting Frame

Stainless steel frames allow ceiling modules to be installed in reinforced drywall or other ceiling material.

Lighting & Other Ceiling Modules

Cleanroom Lighting

Cleanroom Lighting

Illuminate your room with modular lights including fluorescent, space-saving teardrop, flow-through modules and energy-efficient LED

Germicidal UV-C Lamp

Germicidal UV-C Lamp

Our Germicidal UV-C Lamp helps disinfect cleanrooms, labs and aseptic environments. A built-in safety sensor will turn off when motion is detected

Cleanroom Ionizers

Cleanroom Ionizers

Create a homogeneous stream of positive and negative ions to neutralize surface static charges with these Ionizing Bars. Stop ESD before it starts!

Ceiling Grid Panels

Ceiling Grid Panels

Effectively seal unoccupied ceiling grid bays with panels made of application-specific material. They are firmly held in place with ceiling clips

Did You Know?
Fan/Filter Units Do More Than Meet ISO Requirements—they also prevent infection.

Pathogens: Bacteria   Disease
Escherichia coli   Gastrointestinal infection
Bacillus anthracis   Anthrax
Aspergillus brasiliensis   Sinus infections
Francisella tularensis   Tularemia
Bordetella pertusis   Whooping cough
Mycoplasma pneumaoniae   Pneumonia
Chlamydia pneumoniae   Bronchitis
Clamydia psittaci   Psittacosis
Klebsiella pneumoniae   Opportunistic infections
Haemophilus influenzae   Meningitis
Coxiella burnetii   Q fever
Pseudomonas aeruginosa   Opportunistic infections
Actinomyces israelii   Actinomycosis
Legionella pneumophila   Legionaire's disease
Thermoactinomyces sacchari   Farmer's lung
Alkaligenes   Opportunistic infections
Streptococcus pyogenes   Scarlet fever
Mycobacterium Tuberculosis   Tuberculosis
 

Most cleanroom professionals understand that FFUs capture contaminants that degrade particle-sensitive samples. But they also remove bacteria and many viruses and mold spores that contribute to a host of infections.

Most common bacteria are contained by the 0.3-micron pore size of high-efficiency particular air (HEPA) filters. Ultra-Low Penetration Air (ULPA) filters, which are rated 99.999% efficient at retaining particles of 0.12 microns and larger in diameter, capture ultra-fine contaminants, including many large viruses and mold spores.

These filters also remove aerosol-born pathogens—germs that literally hitch a ride on larger particles and liquid droplets that are captured in a HEPA or ULPA filter.

HEPA- or ULPA-based Fan/Filter Units (FFUs) thus can play an important role in infection prevention in surgical theaters, ICUs and other medical settings. Here is a list of common human pathogens that HEPA/ULPA filters capture and remove from circulation:


File Type File Name Publication Date
Tech Resource (PDF) Calculating Clean Room Cleanliness: How many FFUs and Lights?
This tutorial provides practical tips for correlating the desired cleanliness level (per ISO/FS209 standards) to the required number of fan/filter units (FFUs). Also provides guidelines for specifying lights based on the type of operations being conducted.
05/15/2015
Tech Resource (PDF) HEPA and ULPA Particle Filters
HEPA and ULPA filters remove sub-micron particles from the air, which are too small to see but create BIG problems in many critical manufacturing operations. Read about filter capability and airflow resistance testing.
05/18/2015
Tech Resource (PDF) Charcoal Filter Life
Unlike HEPA and ULPA particle filters, activated charcoal filters create no additional backpressure when they near the end of their service life. So when do you replace them? Here's how to tell.
05/18/2015
Tech Resource (PDF) Chemical Filtration Table
This document shows the recommended air filter to use when working with chemicals commonly found in laboratory and manufacturing environments. An estimate of filter capacity is also documented, to help plan for replacement intervals.
05/18/2015
Manual (PDF) HEPA/ULPA Fan Filter Unit (CE Marked): Doc 1800-34-CE.pdf
CE-marked Fan/Filter Unit (FFU) Quick Start User Guide
08/13/2015
Manual (PDF) WhisperFlow™ Fan/Filter Units: Doc. #1800-34
Fan/Filter Unit (FFU) Quick Start Operating Manual. Find installation and maintenance instructions along with unit specifications.
04/22/2016
Manual (PDF) Explosion-Proof Room-Side Replaceable Fan Filter Unit
Specifications and instructions for Terra's Room-Side Replaceable (RSR) Explosion-Proof Fan/Filter Unit. See step-by-step instructions on how to change the filter from inside the cleanroom enclosure.
09/10/2015
Manual (PDF) Smart WhisperFlow™ Fan Filter Units: Doc. #1788-14
See installation and maintenance instructions, along with specifications, for Terra's low-energy, ECM Fan/Filter Unit, installed in cleanrooms and hoods.
08/31/2018
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