Customer L8 Login Customer Contract Login

TR/19 – the formula for compliance

By August 14, 2014News

The second edition of the B&ES Association’s TR/19 Internal Cleanliness of Ventilation Systems, widely recognised as the leading industry guidance document for ventilation ductwork hygiene maintenance, has been issued this month. What will that mean for you and your buildings?

Swiftclean MD, Gary Nicholls was one of TR/19’s original authors and also served as a member of the B&ES Steering Committee which drafted the second edition. So who better to explain the changes than Swiftclean?


While TR/19 has provided useful guidance on ductwork cleanliness for several years, it did need to be brought into line with BSEN: 15780, the British Standard and European Norm which governs general ventilation ductwork for supply and extraction. That has now been achieved.

The biggest change is that we no longer have a ‘one size fits all’ approach to ductwork, regardless of the use of the building. Now, ductwork systems will be classified as high, medium or low, in terms of the levels of cleanliness required according to the function of the parts of the building which they serve. If you’re not sure how this will affect your property, call us on 0800 243 471 and we can help you to ensure you comply with TR/19 – and stay compliant too.

How will your systems rate?

Under the guidance of the second edition to TR/19 Internal Cleanliness of Ventilation Systems and BSEN: 15780, the appointed responsible person for each building will be required to ensure that the ventilation systems in each area are classified as high, medium or low and monitor conditions to meet these classifications.

In larger buildings, this can vary within different parts of the same building or complex. For example, a hospital will have high rated areas such as operating theatres, where airborne impurities can have a critical impact; it will also have medium systems such as rooms housing HVAC equipment, or equipment storage.

Many buildings will have zones with different ratings. These could be:

HIGH – operating theatres, laboratories, intensive care/therapy facilities

MEDIUM – hospital wards, hotel bedrooms, restaurants, retail facilities, leisure complexes and offices

LOW – warehouses and storage areas, workshops and technical rooms

Not sure how this will apply to you? Give us a call on 0800 243 471.


A good starting point is to know whether your buildings are compliant now. There are a few simple parameters you can check to see if you are compliant, or whether you need to take immediate action. Our simple compliance checkers for ventilation systems and air handling units are a great place to start.

If your ventilation system has not been inspected or cleaned for several years, there is a very good chance you’re not compliant. Since that could have serious legal consequences, it’s best to call us now on 0800 243 471.


Out of sight, behind your extractor hood, your kitchen extract ductwork still needs to be monitored for fire risk related to grease build up and deposits must be removed regularly to control the fire risk. You will now need to plan your testing and cleaning according to how likely your ductwork is to accumulate grease deposits. This is actually fairly simple by following the tables laid out in the second edition of TR/19 which consider usage hours of the kitchen and propensity of grease production during typical cooking processes.

Our expert cleaning service will ensure that you are compliant, fire safe and legal, and we can also devise a regular maintenance programme that will keep you compliant with TR/19 in the longer term. Just call 0800 243 471 to get started.


Of course, we’re looking at TR/19 with a trained, expert eye, so if it’s still a mystery to you, or you just have more pressing core business to attend to, please give us a call on 0800 243 471 and we’ll take care of everything for you.

It’s no secret that no matter where you are in the UK, when it comes to TR/19, Swiftclean can help.