Car park supply and exhaust ducts definitely need cleaning more often that air conditioning ductwork due to particulate build up from vehicle exhausts, especially in confined spaces with heavy traffic volumes. The recommendations for these exhausts are the same as air conditioning ducting, but we have found that a lot of car park ducting requires cleaning at yearly intervals.

Toilet exhaust systems and laundry exhaust systems also require more frequent inspection due to the amount of lint build up in the systems. These are cleaned the same way as car park exhausts.

Prior to commencement of work when working in car parks, a section of the car park is blocked off to prevent entry of vehicles both for our safety and that of the driver. If carrying out toilet or laundry exhaust cleaning the area is also blocked off. Any client equipment in the area is covered if necessary.

Access panels are cut at intervals to allow cleaning and fogging. These will also assist with subsequent inspections. These panels may be either insulated or sheet metal, depending on the ducting installed.

We then brush and vacuum all sides of the ductwork, by either external means in small ducting or physically entering larger ductwork. Once the ductwork is cleaned fogging is then carried out, either with Hospital Grade Disinfectant or Sanocair as this will kill any residual bacteria or mould left in the duct.

All grilles and dampers are removed and cleaned in Hospital Grade disinfectant and replaced on completion of work.

All fans are cleaned using a degreaser where necessary.

When exhaust maintenance is completed the working area is thoroughly cleaned, with all debris removed from the site.

All work will be carried out in accordance with AS3666.2, AIRAH guidelines and in accordance with the Workplace Health and Safety Act. A Certificate of Completion will be issued, along with a written report on the work carried out.

Digital before and after photos can be issued on a CD or USB stick if required.

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