- Converts any space into negative pressure isolation room
- Ducted version includes a 12"-diameter flange for connection to exhaust systems
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WhisperFlow® Reverse-Flow Fan Filter Units
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Manufactured By: Terra Universal
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Product Details
• Converts any space into negative pressure isolation room
• Ducted version includes a 12"-diameter flange for connection to exhaust systems
• Removes submicron particles for safe air release into cleanroom or laboratory
• Ideal for containing dust generated during maintenance or construction
• Applications: enclosures for cleanroom renovations, equipment repair
• Select HEPA filter (99.99% efficient @ 0.3 µm particles) or ULPA filter (99.999% efficient @ 0.12 µm particles)
• Quiet, low-vibration WhisperFlow design: only 50 dBA, measured 30" from filter face @ 90 FPM
• Provides airflow of 640+ CFM under filter load at Medium speed
• Three-speed switch simplifies air balancing
• Provides years of no-maintenance, 24/7 operation depending on your air quality
• Internal baffling plate and diffuser panel provide quiet uniform air flow across the filter face
• MERV 7 pre-filter, 30% ASHRAE rated
• 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
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
Features & Benefits
Features & Benefits
Filter Fan Units Prevent InfectionDid You Know?
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Did You Know?
Fan/Filter Units Do More Than Meet ISO Requirements—they also prevent infection.
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 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.
Additionally, HEPA filters can help filter pollen, tiny insects, bacteria, mold, and other fungal spores that might be present during plant tissue culture or cannabis production. Contaminants such as these can find a way in via personnel or normal HVAC units and can blight crops and reduce yields. HEPA Filters help increase crop yields, pass inspection/meet regulations, and reduce contamination.
Here is a list of common human pathogens that HEPA/ULPA filters capture and remove from circulation:
Pathogens: Bacteria and Diseases
- 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
Eliminate Contaminants and Pathogens
HEPA and ULPA filters capture many bacteria, viruses, and mold spores that contribute to a host of infections for both humans and plant/animal tissue cultures
COVID-19 Infection Control
Terra’s in-stock ceiling-mounted reverse-flow ducted filter fan units convert any space into a negative pressure isolation room
Available Accessories
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.-
Stand for Cleanroom Fan Filter Unit
Powder coated steel Fan Filter Unit stand supports up to two Fan/Filter Units for horizontal-flow applications (order FFU separately) -
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). -
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).
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Manuals & Resources
Manuals & Resources
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