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27 May 2010

THE HOWORTH 4D SHIELD HIGH CONTAINMENT SCREEN – As seen in Cleanroom Technology Magazine – August 2010

For years, the pharmaceutical industry has known that Howorth’s High Containment Screens (HCS) are a simple but effective way of boosting the containment capabilities of any downflow booth. However, in a rapidly developing market, with an ever-increasing emphasis on operator safety coupled with the need to handle ever-more potent compounds, Howorth realised that you,  our clients,  needed something even better – a screen which could offer unparalleled levels of operator protection, combined with increased operator flexibility. 

HCS-CFDSo we listened to what you told us you wanted, put our best minds on the job, gave them the most advanced computer software available, and allowed them the time, money and facilities to produce the best possible product:  they designed the Howorth 4D Shield.  The Shield is a cutting-edge HCS which offers previously unattainable levels of operator protection and flexibility. It can be installed within a new downflow booth or retrofitted into an existing booth, even one supplied by another manufacturer.  All aspects of the Shield combine to make it the simplest, safest, most cost effective answer to all your containment needs.


Our Most Flexible HCSHCS-12-High-Quality-Image

The Shield is our most flexible screen, offering four degrees of movement:

  1. Side to side
  2. Front to back
  3. Up and down
  4. Controlled rotation

This flexibility makes it the ideal solution for a wide range of processes, as well as making it the best choice for improving the comfort of operators, as the range of movement helps to prevent bad practises which may impact on an operator’s posture. To see a video of the range of movement, click here


Offering Our Lowest Operator Exposure Levels

Independent testing of the Shield has confirmed that OELs as low as 1μg/m3 can be achieved when operated in conjunction with agreed SOPs.  Processes considered to have a higher risk of exposure also benefit from a considerable reduction in OELs. The reduction in OELs also means that, for operations where previously an air suit or isolator was the only option, a downflow booth combined with a Howorth Shield is now a viable alternative.


A Wide Range of Installation Optionsshield_smaller_still

The Shield has been developed specifically to allow it to be fitted within existing booth facilities, so whether your booth is a Howorth unit or supplied by another manufacturer, we are able to offer a complete turnkey retrofit or upgrade service including:

  • Site survey
  • Design and manufacture
  • Installation and commissioning
  • Site acceptance testing and validation

Howorth also offers a full prototyping service, giving clients the assurance of seeing and working with a full-size mock-up prior to manufacture of the final product.

The Howorth 4D Shield – We think it is the best product of its type available on the market.  Call or visit us, discuss your needs, and we think you will be convinced, too.

Call David Jackson at Howorth on +44 (0) 1204 571131, or visit our



For our full Howorth Shield brochure, click here