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Respiratory Protection eTool

Respirator Change Schedules Decision Logic Flowcharts

Go To Flowchart 5 Go To Flowchart 6 Flowchart 4
Text Version
  • 4 The results of the following decisions can be combined based on contaminant/cartridge combinations.
    • Does the cartridge have an ESLI for all contaminants?
      • Yes - A change-out schedule is not required.
      • No - Go to "Is manufacturer recommendation available for cartridge type?"
    • Is manufacturer recommendation available for cartridge type?
      • Yes - Go to "Using manufacturer's information and your work environment, develop service life for each respirator user".
      • No - Go to "Is breakthrough data available for contaminants?"
    • Is breakthrough data available for contaminant?
      • Yes - 5 Go to flowchart 5
      • No - Go to "Will you perform testing to obtain needed data?" - 5R
    • Will you perform testing to obtain needed data?
      • Yes - 6 Go to flowchart 6
      • No - Insufficient information to develop a change-out schedule. You cannot use an APR.
    • Using manufacturer's information and your work environment, develop service life for each respirator user.
    • 7 - Document respirator cartridge change-out schedule.
    • Identify all gas/vapor respirator type, manufacturers, and cartridges to be included.
    • Identify each job classification which will be using a respirator.
    • Identify all environmental and work factors (temperature, humidity, work rate, expected time used, etc.) for each job class.
    • For each job class, identify all contaminants and worse case concentration.
    • For each combination of the above items, document the maximum time between cartridge changes.
    • Unless substantial information supports a decision otherwise, require cartridges to be changed at the end of each work shift.
    • Prepare a written document describing all factors and supportive data used to develop the change-out schedule.
    • Train respirator users in the application of the change-out schedule and ensure they are aware of the availability of the change-out schedule documentation.
    • Enter change-out schedule information into respiratory protection program.
    • Review change-out schedule annually or whenever a change occurs in respirator manufacture or usage.
Flowchart 4

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