• Filter Material: Micro-glass fiber/acrylic resin binder
  • Frame Material: 304 Stainless Steel
  • Sealant Material: Fire-Retardant/Phosphorous free rwo part polyurethane
  • Gasket Material: Seamless Urethane Foam, Upstream
  • Grille Material: Perforated Anodized Aluminum, Downstream
  • All filter sales are final; returns of this item cannot be accepted


Size: 16" x 24"

Filter Frame Material: 304 Stainless Steel

Filter Type: ULPA

Unit of Measure: EA


Weight, Product: 12 lb

Dimensions, Product: 16" W x 24" D x 3.25" H

Weight, Shipping: 16 lb

Dimensions, Shipping: 18" W x 26" D x 5" H

Fan Filter Units With HEPA & ULPA Filters

  • Terra Universal WhisperFlow® Filter Fan Units Terra Universal WhisperFlow® Filter Fan Units
Terra Universal WhisperFlow® Filter Fan Units

Features and Benefits

UL 900 Certified for Fire Safety

HEPA and ULPA filters are UL certified for UL 900 to meet local and state fire safety requirements for most applications. The standard covers requirements and tests for allowable combustibility and amount of smoke generated.

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.

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.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Comprehensive Product Portfolio

Terra’s comprehensive product portfolio includes solutions for every application and budget. Our technical sales staff will guide you toward the product most suitable for your requirements.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Complete Project Transparency

Terra is dedicated to complete transparency on project status, shipment tracking, and installation scheduling
Manuals & Resources
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