Callidus Design Consulting Engineers

Designers, engineers, consultants and technical specialists covering a wide range of building and process services.

Project Profile

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Stirling Medical Innovations 2009

Project Description:

New Low Humidity ISO 7 Cleanroom



Project Value:

Project Duration:

 Stirling University Innovation Park

 Stirling Medical Innovations


 July 2009 – Aug 2009



Cleanroom Floor Area:  205m2
 Cleanroom Classification:  ISO 7 (Class 10K)
Controllable Temperature Range:  17 to 23 DegC
 Controllable Humidity Range:  10 to 70%RH
Ancillary and Support Areas:  220m2


Client: ROK Group
Main Contractor: ROK Group
Architect: G1 Architects
Quantity Surveyor: Turner Townsend
M&E Building Services Engineer: Callidus Design Limited

New Low Humidity ISO Class 7 Cleanroom

Callidus Design Limited were appointed by Stirling Medical Innovations (now known as Alere Technologies Ltd) as lead designer to design a new Low Humidity, ISO Class 7 Cleanroom (Class 10K) facility within their existing building. The facility allowed SMI to commence prototype production of a new medical device which they had recently developed. The works involved the design of a new HVAC system which was capable of operating over a wide range of temperature and humidity setpoints. This flexibility essentially provided SMI with an environmental chamber, the conditions of which could be varied over a wide range in order to test the stability of their product in varying environmental conditions. Callidus Design Limited were responsible for the design and specification of the following mechanical electrical and process building (MEP) services:


  • Supply and recirculation ventilation installation
  • Fresh air ventilation installation
  • Dedicated chilled water installation
  • Dedicated LTHW heating installation
  • RO Water installation
  • Clean dry air installation
  • Fume exhaust installation
  • Domestic water installations
  • Drainage installations
  • Lighting installation
  • Small power installation
  • Fire alarm installation
  • PA installation
  • Security installation
  • Controls installation


In order to accommodate the plant associated with the new cleanroom, a new dedicated plantroom had to be carefully configured within the confines of a small site.