Low profile fan filter units are ideal for cleanrooms with restricted height areas
High Efficiency Particulate Air (HEPA) Filter: 99.99% efficient at 0.3µm particle diameter
Variable speed control dial for precise air flow control
FDA-approved silicone sealant prevents air leakage without harmful outgassing chemicals
Backward-curved fan for optimized efficiency
4-pin connector for easy installation to Terra cleanrooms (connector may be used with an optional wall plug adapter; or may be removed entirely to hard-wire the FFU)
Filters are leak tested in accordance with IEST standards to 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
Replacement filter
Filter replacement alarm
Ionizing bar
Control panel with power distribution modules
All filter sales are final; returns for this item cannot be accepted
Overview video of Terra Universal's comprehensive portfolio of filter fan unitsTerra Universal WhisperFlow® Filter Fan UnitsOverview video of Terra Universal's comprehensive portfolio of filter fan units
Terra’s Mini HEPA FFU removes airborne contaminants to enhance contamination protection in small enclosures. The LED status indicator glows continuously when the FFU is plugged in and turned on to confirm the system is operational. Variable speed control dial allows for precise air flow control. Durable and corrosion resistant 304 stainless steel housing resists alcohol-based cleaning agents.
Mini FFU Size Comparison
The Mini FFU fits a compact 12”x12” footprint. Perfect for small enclosures such as storage cabinets, gloveboxes, and pass-through chambers. Single pass HEPA-filtration adds an extra layer of protection against particle and microbe contamination.
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.
Low Profile FFU Design Only 8-Inches Tall
Low profile fan filter units are ideal for cleanrooms with height constraints. They stand 8 inches tall, compared to a standard FFU that stands 13.5 inches tall. The variable speed control dial allows for precise air flow control.
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
Long Running FFU Motors
Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.
Clean and Durable Powder Coat Finish
Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.
Network of International Reps
Terra employs an international network of more than 20 local sales reps trained to provide comprehensive service on Terra's complete catalog of products
Wide Selection of Global Shipping Options
Terra offers a broad range of global shipping services including door-to-door and white glove delivery. Each product is safely packaged in a heat-treated wooden crate that meets international shipping standards.
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.
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.
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.
Night Service Saves Energy, Extends Filter Life!
Night service switch, shown mounted on Modular Hardwall Cleanroom panel, puts FFUs in low-energy mode during off-hours; saves 25% of fan operating costs and extends filter life.
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).
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.
FFU Mounting Frame; Stainless Steel
Stainless steel Fan Filter Unit (FFU) mounting frame supports FFU on drywall or other rigid ceiling material, viewed from above ceiling panel (FFU not included).
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 Covers Allow Ceiling Wash-Down
Ceiling panel covers allow wash-down and sterilization of cleanroom walls and ceilings without damage to filter medium; requires BioSafe glass or stainless steel wall panels, which stand up to biocides.
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).
