Chairman’s Message

“SVHSoc brings together people who care about safe, effective healthcare ventilation.
Our members help improve standards across design, installation, commissioning, validation and operation. This work matters because good ventilation supports safer healthcare environments for patients, staff and visitors.
By joining, you become part of a specialist network that shares knowledge, supports CPD and promotes best practice. Whether you are experienced, developing your career, or representing an organisation, SVHSoc gives you a place to learn, contribute and connect.
We are stronger when expertise is shared. We are stronger when standards are clear. We are stronger when the sector works together.
I encourage you to join SVHSoc and help shape the future of healthcare ventilation.”

Society Overview

The Executive Committee consists of (no less than) five members who are voting members of the Society.  The Chair, Vice Chair will serve for three years, with other posts being in place for one year.  At the discretion of the Executive Committee two extra members may be co-opted onto the Executive committee in an advisory capacity only, for a maximum term of one year.

Current Office Bearers are:

  • President
  • Chairman
  • Vice Chairman
  • Membership Secretary
  • Treasurer
  • Advisory member

Duties and Meetings

The Executive Committee have control of the property and affairs of the Society and agree its policies.  The Executive Committee declare the holding of office in other societies which could be deemed a conflict of interest.

Structure & Meeting overview – frequencies / format

The Executive Committee will hold not less than four regular meetings during the year at times and places to be fixed by the Chairman.  Special meetings may be called by the Chairman or by any three members of the Executive Committee which constitutes a quorum.

Meet Our Team

Principle officers for the SVHSoc are shown below and undertake the day to day running of the society.

Derek Cliffe
Derek CliffeChairman
Consulting Engineer – Authorised Engineer (Ventilation)

With more than 40 years of experience in building services, Derek specialises in healthcare and works across both the NHS and private sectors, with expertise in medical gases and water safety.

He has served as an AE(v) on several major healthcare projects, including the £1.6 billion Midland Metropolitan University Hospital in Sandwell, Birmingham, where he oversaw quality and compliance and witnessed and validated the commissioning of critical ventilation systems, including UCV and conventional theatres, PPL isolation rooms, imaging suites, and endoscopy suites.

Although healthcare is his main passion, Derek also brings broad experience across power generation, chemicals, district heating, retail, and education.

Mike Dunne
Mike DunneVice Chair
Consulting Engineer

Mike Dunne is Vice Chairman of the SVH Society. Mike has over 20 years’ experience in Engineering, with the past 16 years focused on healthcare projects delivered across three continents. He is technically specialised in UCV operating theatres and is experienced in the design, validation, and verification of critical ventilation systems.
In his current role at Stantec, Mike is appointed as AE(v) for several NHS Trusts and a major private healthcare provider in the UK. Alongside his AE(V) duties, he manages team members within Stantec’s MEP team and actively contributes to the wider industry.
His industry support includes an annual guest lecturing position at a UK university with the Year 4 Building Services cohort and works related to the Engineering Council. He is committed to developing people within the sector and promoting professional excellence.

Malcolm Thomas
Malcolm ThomasPresident
Consulting Engineer
Harry Evans
Harry EvansAuthorising Engineer (Ventilation)
Harry is a chartered professional with over 40 years’ experience in the design, operation, and maintenance of commercial, industrial, and healthcare estates. His career includes extensive leadership roles across building and engineering services, supported by a broad portfolio of professional qualifications.

He began his NHS career in 2000 within the Capital Design team at Salford Royal NHS Foundation Trust, later becoming Head of Operational Estates – a role he held for more than 12 years. In 2015, he was appointed as an Authorising Engineer (Water) for EQUANS. He now leads his own consultancy, HDE Authorising Engineers, providing AE(W) and AE(V) services to NHS organisations and other clients across the UK.

Jared GrayMembership Secretary
Jared Gray is an experienced ventilation specialist with a proven track record in design and delivery of Healthcare ventilation solutions. With his 20 years’ experience in Ventilation/Engineering, Jared combines deep technical expertise with hands‑on experience supporting Healthcare organisations and their supply chain in navigating HTM0301 compliance, improving energy efficiency, and enhancing the compliance and performance of critical healthcare spaces.

In his role as Technical Director at Air Handling Systems Ltd, Jared has led the development and delivery of specialised healthcare ventilation products, including a cabinet AHU product which won Product Innovation of the Year at the 2023 IHEEM Healthcare Estates Awards. In addition, he has recently showcased a highly advanced, and patented, heat recovery ventilation system for healthcare applications. With his commitment to sharing knowledge, you will find him delivering informative CPD’s on the SVHsoc platform, as well as the Specialist Ventilation for Healthcare Premises course delivered through Leeds University.