FMS is the new name for
Validair Monitoring Solutions

For continuous cleanroom monitoring systems, critical alarm systems, particle counter supply and repair, installation, field service, calibration and technical support, visit the FMS (Facility Monitoring Solutions Ltd) website.

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T-SQUARED Validair Limited

For a full service comprising support with qualification, verification and testing of all cleanrooms, clean air and contamination-controlled environments, as well as validation consultancy services, visit T-SQUARED Validair Limited.

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The Validair Group provides environmental monitoring solutions, particle counter supply, clean air testing, consultancy, calibration and technical services across a broad range of cleanroom, contamination-controlled and sensitive environment applications.

Our cleanroom monitoring solutions comprise particle counters, sensors, and advanced control software, backed by unmatched industry expertise. A complementary range of bespoke services address equipment installation, clean air testing & validation, regulatory audits, and compliance certification.

Through strategic collaboration, the companies within the Validair Group deliver a world-class service founded upon decades of experience in environmental and contamination control. Both Validair Diamond Scientific and FMS (formerly Validair Monitoring Solutions Limited) are UKAS ISO17025 certified.


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Industry-leading particle counter supplier with expertise in cleanroom monitoring, critical alarm systems, equipment installation, field service and technical support, particle counter repair, and calibrations to UKAS ISO17025 standards.

+44 (0)1684 576452

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Industry-renowned services in cleanroom testing, certification, clean air test and validation to UKAS ISO17025 standards (Lab No. 4264), regulatory compliance and certification, and qualification documentation.

+44 (0)330 056 3887

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