Hygiene Services > Air Hygiene > Ventilation System Hygiene Monitoring

Hygiene Monitoring - Ductwork & Ventilation Systems

Swiftclean offers a complete ventilation hygiene monitoring service for all building services. All too often Swiftclean is commissioned to clean an air or water system only for that system to deteriorate due to lack of regular inspection and servicing. It makes obvious economic sense to maintain standards of hygiene once a system has been initially refurbished or indeed newly commissioned. Regulations impose a Statutory Requirement to regularly test ventilation systems

VENTILATION SYSTEM HYGIENE MONITORING

The service can be tailored to meet the particular needs of individual systems, to establish whether or not it is considered 'appropriate' to clean a ventilation system. From early 1996 to date Swiftclean have been working with HVCA to produce a "Guide to Good Practice". The guide known as TR/19 (now in it’s second edition) recommends three methods which establish an objective procedure for measurement of accumulated deposits within the ductwork. The guide also defines surface deposit limits for kitchen extract, general extract, recirculation and supply systems, to enable objective decisions on effecting the cleaning. The testing service was developed in compliance with TR/19. It provides an excellent basis for the Facilities Manager to make decisions relevant to Ventilation Cleanliness, ensuring that reasonable yet not excessive levels of cleanliness are maintained, thus keeping costs to a minimum.

The Facts

  • Helps reduce costs
  • Ensures compliance with current Workplace Regulations, Approved Codes of Practice and the HVCA "Guide to Good Practice"
  • Clearly defines when it is appropriate to clean the ventilation system.
  • Prevents excessive levels of deposits accumulating within the system
  • Helps to provide a safe working environment

Helps reduce costs • Ensures compliance with current Workplace Regulations, Approved Codes of Practice and the HVCA "Guide to Good Practice" • Clearly defines when it is appropriate to clean the ventilation system. • Prevents excessive levels of deposits accumulating within the system • Helps to provide a safe working environment

The Benefits

  • The person responsible for the maintenance of the system can now determine if the system requires cleaning, preventing any unnecessary expenses.
  • Compliance with the regulations ensures that the person responsible for the maintenance of the system is fulfilling their legal obligations whilst applying good Codes of Practice.
  • Allows the person responsible for the maintenance of the system to plan their maintenance budgets with more efficiency, by enabling them to accurately predict when money should be put aside for this type of maintenance.
  • Maintains a healthy working environment by greatly reducing the effects of the main contributor that leads to "sick building syndrome" and subsequent staff absenteeism/reduced productivity

SCOPE OF SERVICE

1. Ventilation System Logbook

To assist with the management control process, we will, with the Facilities Managers assistance, compile a Record Book to include the following:

  • Schedule of all systems under management control
  • Details of Plant locations - areas served.
  • Categorisation of systems in terms of risk
  • Record drawings of systems
  • Drawings indicating test points
  • Schedule of filter types and sizes for each system
  • Previous inspection reports
  • Technical information relevant to systems.
  • Planned preventative maintenance schedules for systems.

2. Test Points

To set up the monitoring process it is necessary to designate test points as laid out in TR/19. If necessary, additional access points will be installed into the ductwork systems.

Each test point will be given a unique identity number and the mean galvanise thickness will be recorded on the record drawings and these points will be used for all future monitoring.

3. System Testing/Inspection Service Options

The following service options can be included within a testing schedule. The frequency of service would depend on the risk category of each individual system.

(a) Testing

Deposit Thickness Tests (DTT) at designated location, to include independent graphical reports on each system. Summary of recommended actions based on a pre-determined criteria.

(b) Inspection

Detailed visual inspection can be undertaken of fresh air intakes, air handling units and a pre-determined selection of inline plant and ancillaries (i.e. dampers, heat exchangers, terminals etc.) Photographic record to be taken of any faults or problem located.

(c) Microbiological

Swab samples or contact plates for independent laboratory analysis, to determine Total Viable Counts of fungi and bacteria.

Swab samples or contact plates for independent laboratory analysis, to determine Total Viable Counts of fungi and bacteria

For advice on this service please contact us: air@swiftclean.co.uk or free phone 0800 243 471.

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