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FOI 2024 002 - NHS Wales guidance on HEPA filters and UVC devices


Information Requested:

Please can you confirm what equivalent guidance & standards are in place in NHS Wales for the following NHS England guidance: 

Application of high efficiency particulate air (HEPA) filter devices for air cleaning in healthcare spaces: guidance and standards 




NHS Estates Technical Bulletin (NETB 2023/01B): application of ultraviolet (UVC) devices for air cleaning in occupied healthcare spaces: guidance and standards,options%20including%20UVC%20air%20cleaning 


Can you confirm how many NHS Wales hospitals have a Ventilation Safety Group (VSG) as described in the NHS England HEPA guidance above? 


Information provided for the answer:

Thank you for your request dated 2nd January 2024. 


Public Health Wales does not hold this information. 


Public Health Wales is the public health service for Wales and as such is an independent NHS Trust. As an organisation we have no jurisdiction over the activities of Health Boards or other NHS Wales organisations and frequently do not have access to the data that they produce.  


This information may be held by NHS Wales Shared Services Partnership (NWSSP) 

NHS Shared Services Partnership  

Making a Freedom of Information Request - NHS Wales Shared Services Partnership 


I have also provided contact details for each Health Board and DHCW below as they may hold other information relevant for your request; you would need to contact them individually 


Aneurin Bevan University Health Board 

Betsi Cadwaladr University Health Board 

Cardiff and Vale University Health Board 

Cwm Taf Morgannwg University Health Board 

Swansea Bay University Health Board 

Hywel Dda University Health Board 

Powys Teaching Health Board 

Digital Health and Care Wales 

Freedom of information - Digital Health and Care Wales ( 


I am very sorry we are unable to help on this occasion. 


If you are unhappy with the service you have received in relation to your request and wish to make a complaint or request a review of the decision, you should write to the Corporate Complaints Manager, Public Health Wales NHS Trust, 3, Number 2, Capital Quarter, Tyndall Street, Cardiff, CF10 4BZ.

If you are not content with the outcome of your complaint or review, you may apply directly to the Information Commissioner for a decision. Generally, the ICO cannot make a decision unless you have exhausted the complaints procedure provided by the Trust. The Information Commissioner can be contacted at:

Information Commissioner for Wales
2nd Floor
Churchill House
Churchill Way
CF10 2HH

Telephone: 029 2067 8400