Laminarflow fume extraction

Filtered fume extraction

Laminarflow fumehoods

Purair® Laminar Flow Hoods are a series of high efficiency products designed to protect equipment and other contents of the work zone from particulates, for applications sensitive to such contamination. The series includes Laminar Flow Fume hood (VLF) cabinets and Laminar Flow Fume hood (HLF) cabinets and is ideally suited for use with non-hazardous contaminants and when flexible access to the equipment in the work zone is desired. At the heart of the Purair® Laminar Flow Hood product line is the Air Science Multiplex™ ULPA Filtration Technology that creates a clean work environment over a wide range of applications.

  • Horizontal laminar flow vs Vertical laminar flow.

  • Virtical Laminarflow Fume hoods
  • More often have filters located on the back wall. Filtered air is then passed horizontally from the rear, straight across the work surface.
  • Laminar Flow Fume hood
  • Typically have a top or ceiling mounted filter.
  • Air exiting the filter media passes from the unit ceiling and then across the work surface, sweeping particles out of the enclosure as it goes.
  • Both tyes of filteredfume hoods

    provide unidirectional airflow that protects products on the work surface against particles and particulates. The choice for your specific needs can come down to personal preferences but there are a benefits unique to each model.
  • Laminarflow fume hoods

  • Features and Benefits.

  • Purair® Laminar Flow Hoods are available in vertical and horizontal configurations with range of sizes and options 36 in all, in 6 widths options.
  • Purair® Laminar Flow Hoods are shipped fully assembled, no installation is required; just plug them in and use them.
  • Products are designed for desktop use, or may be installed on an optional mobile base stand.
  • Perforated rear wall on vertical flow cabinets to reduce work surface turbulence by removing some of the airflow to the rear.
  • High capacity air handling system delivers flow velocity of 0.4-0.5 m/s or 80-100 fpm.
  • Choose from standard powder coated interior or stainless steel interior (-SS models).
  • Purair® VLF and HLF hoods have an ULPA filter pressure gauge to measure filter performance.
  • The Air Science filters are easy to access, easy to change.
  • Accessories include an IV bar, service fixtures, base stand, UV lamp and front door/cover.
  • Provides sterile work zone for aeseptic techniques.
  • Air cleanliness meets and exceeds ISO Class 4.
  • All models use ULPA filters (99.999% efficient at particle sizes between 0.1 and 0.3 microns.
  • All models equipped with a stainless steel work surface.
  • LF Laminarflow fume extraction Series Product Features:
  • A. Control Panel:The control panel includes On/Off switch for fan, lighting, GFCI outlets, Minihelic ULPA pressure gauge to measure filter condition, UV lamp key switch.
  • B. Main Filter: Long-life Camfil Farr ULPA main filter with efficiency of 99.999% at particle sizes between 0.1 to 0.3 μm.
  • C. Pre-Filter: Disposable polyester fiber pre-filter with 85% arrestance.
  • D. Blower Motor: ebm-papst external rotor blower.
  • E. Stand: Optional mobile cart with locking casters, includes a convenient lower shelf.
  • F. Lighting: Compact LED cabinet lamp located away from laminar flow area.
  • G. UV Lamp: Optional ultraviolet (UV) lamp to sterilize and decontaminate work zone and cabinet contents between operating periods.
  • H. Ergonomic Design: Ergonomically angled front improves reach and comfort.
  • I. Work Surface: Stainless steel work surface with no spill retention.
  • J. Fan Control: Recessed fan speed control.
  • K. IV Bar: Optional IV bar with "S" hooks.
  • L. Night Door: Optional night door/cover to protect cabinet interior when blowers are off. Contains UV radiation when UV activated.
  • M. Power Supply: GFCI outlet to power equipment in cabinet.
  • N. Service Fixtures: Optional petcock service fixture (maximum 4 per unit).
  • Purair® LF Series Other Features
  • Visibility
  • Side windows allowing ambient light into the chamber providing users with optimal visibility for the viewing of contents. (Not available on stainless steel models.) Sterile Compounding Compliant.

    When used according to best practices, the LF Series cabinet encourages compliance with criteria set forth by USP 797 for sterile preparation in pharmaceutical compounding of nonhazardous agents. These include injectables, IV admixtures, pastes and ointments and irrigating solutions which are protected by filtered air over the work surface in a laminar flow.


    Choose from standard powder coated interior with stainless steel work surface and side windows or optional stainless steel interior (-SS model). Available in 120V, 60Hz, and 230V, 50Hz models.

    Laminarflow hoods

  • Forensics, Pharma, Life science, and other applications
  • "We pride ourselves in our work and the training of our engineers to give our customers the confidence to come back!"

    "Preparation is the key to the performance of any Fume extraction equipment, a well designed and fabricated duct work system"

    LF fumehoods
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    LF Horizontal
    Vertical laminar flow
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    Laminarflow fume extraction
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    filtered fume extraction
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