LEV Sliding Sash Enclosure

CTS LEV (Local Exhaust Ventilation) series of enclosures are designed and built specifically to the customer’s requirements and can be used for Particle Sizing, Karl Fisher Titration, Sieving, Milling, Tap Density, Friability, Weighing, Dispensing, Spray Drying, Small Scale Synthesis.
The LEV range of enclosures use a unique CAV (Constant Air Volume) sliding sash mechanism that allows the operator to have variable height access to equipment and processes. This system requires a much lower airflow than a standard fume hood, which saves significantly on energy costs.

  • Full system design service from CTS
  • ECL design 0.1µg/m3
  • Air flow alarm system
  • Safe change HEPA Filtration
  • Solvent filtration available
  • Designed & built to customer specification
  • Low air volume requirement – energy saving
  • Direct connection or re-circulatory options
  • System validation package available

Customisable Design

SKU: LEV-SASH Category:

Download the technical specification of this LEV enclosure with sliding sash using the following button. Alternatively, watch the video below for more details. If you are looking for a bespoke instrument safety enclosure, please contact us.


  • Stainless steel skeletal frame
  • 8mm Optically clear cast acrylic panels
  • Black Phenolic resin base
  • Stainless Steel Plenum
  • Custom built Solutions
  • Easy access for large equipment
  • Bench Mounted or Free Standing
  • LEV enclosures with Sliding sash are designed to customer specification


  • Sliding Sash design allows easy access
  • Constant air volume design provides
    better containment
  • Surrogate tested for containment of APIs
  • ECL Design to 0.1ug/m3
  • Can operate as a stand-alone system or
    be connected to the house extract system
  • Each system design is created and stored as a CAD file with CTS. Should a customer wish to change the functionality of their enclosure in the future, CTS can re-engineer a solution on site, with minimal disruption to othe laboratory.


  • 230v/50Hz/13A Service (EU)
  • 110v/60Hz/20A Service (USA)



  • Re-circulatory design, can be stand-alone operation or connected direct to house


  • Safe-change HEPA filter
  • Modular air handling filtration unit
  • Min 99.995% efficiency at 0.3 microns (H14)
  • Activated Carbon filtration available


  • Continual airflow monitoring using a dual sensor hot wire anemometer complete with audible / visual alarm


Technical Experts

ISO9001 Certified

Quick Turnaround

In-House Engineering Design

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