Fan Filter Unit; WhisperFlow, 2'x2', HEPA, 240 V, Powder-Coated Steel

• Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
• 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 an optional 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
• 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
• All filter sales are final; returns for this item cannot be accepted

• Type: WhisperFlow
• Material: Powder-Coated Steel
• Filter Replacement Access: Top Side
• Size: 2'x2'
• Filter Frame Material: Aluminum
• Filter: HEPA
• Motor Type: Permanent Split capacitor (PSC)
• Motor HP: 1/4 hp
• Airflow: Positive Pressure
• Speed Control: 3-Speed Switch
• Blower Type: Forward Curved
• Active Filter Face Area: 3.4 ft²
• Pre-Filter: MERV 7
• RoHS: Compliant
• Unit of Measure: EA
• Marks & Listings: CE, UL, ULC
• Electrical Specifications: 240 V, 1.8 A, 1 Ph, 50/60 Hz
• Weight, Product: 44 lb
• Dimensions, Product: 23.63"W x 23.63"D x 13"H
• Weight, Shipping: 64 lb
• Dimensions, Shipping: 53"W x 53"D x 20"H
• Package Type: Palletized

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.

Gel-filled channel on room-side replaceable filter forms a tight seal against knife edge on fan housing, allowing fast, simple filter replacement from inside the cleanroom without the need for costly cleanroom shut-down.

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

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.

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).

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).

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.

Terra offers over 1,700 CE-marked products configured for international voltage requirements

High-capacity, durable, ISO-compliant system rated for thousands of operating hours.

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