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Mechanical Ventilation - DOC by TPenney



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									          Toolbox Talk - Mechanical Ventilation

      Mechanical ventilation can be used to make our working environment
      safer and more comfortable. Systems may be fixed or temporary and
      can either extract/suck contaminants away or supply fresh air into an
      area or space.

      Wherever possible, ventilation should be used to make the workplace
      safer and more comfortable.

1. 2. Hazards

      There are many hazards that may exist that can be partially or
      completely controlled by the use of effective ventilation. Hazards
      may include:

     Welding fumes, from the various different processes used on site.
     Dusts, from:
           fumes
           vapors
           fibers
           heat/heat stress
           working in confined spaces

2. 3. Planning and Assessment of Risks

      Prior to starting any new job or task, it is important to look and
      identify any hazards that may exist. Once hazards have been
      identified actions can be taken to prevent them from causing us a

      Where ventilation is to be used to control hazards it is important that
      the type of ventilation is adequate to make things safe. In many
      circumstances, particularly when hazardous materials are used or
      generated in confined spaces, ventilation by itself may not be
      adequate to provide a safe working environment. Other protective
      measures such as Personal Protective Equipment may be required in
      these situations to protect our health and safety on site.

         Toolbox Talk - Mechanical Ventilation
   Safe Work Practices


      Extraction systems should not be used as vacuum cleaners to prevent
      damaging fan motors and avoiding the build up or rubbish in ducting
      that may restrict the flow or become a fire hazard.

      Personal Protective Equipment e.g respirators, should be worn to
      supplement ventilation where it is not adequate to remove all of the
      contaminants, or where particular hazardous materials are being

      Large diameter (8-10 inch diameter) flexible ducting that has been
      used for extracting paint fumes must not be used to extract ‘hot
      work’ fumes. Overspray in ducting is readily combustible and may
      catch fire if allowed to come into contact with flames, hot slag,
      sparks etc that may be generated as part of ‘hot work’ processes.

Reporting of Faults/Hazards

      Controlling hazards and preventing unsafe situations from occurring
      should be the aim for each one of us. Where faults or hazards are
      identified, or where assistance is required to set the job up, action
      needs to be taken to prevent unsafe conditions from occurring.
      When encountered with a situation that you can not fix yourself,
      contact your Supervisor to fix things up.


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