Worker breathing rate: This is the breathing (work) rate of the worker and is measured in units of liters of air per minute. You should estimate the average breathing rate for the worker during the work period that the respirator is worn.

manstands.gif (1715 bytes) Low (e.g., sitting or standing to control machines, performing light hand or arm work) - assume 30 liters per minute
manstands.gif (1715 bytes) Moderate (e.g., walking about with moderate lifting and pushing) - assume 60 liters per minute
manpics.gif (1293 bytes) High (e.g., pick and shovel work) - assume 85 liters per minute
Other: liters/minute

Workplace Temperature: Enter the maximum temperature expected in the workplace. Fahrenheit is normally used in the United States. Celsius is used in countries which use the metric system. Room temperature is about 22 °C or 72 °F.

º  Celsius  Fahrenheit thermowall.gif (10875 bytes)

Relative Humidity: Enter the maximum relative humidity expected in the workplace.

%

Contaminant Concentration: This is the highest concentration of contaminant expected in the workplace. You should calculate this as an 8-hour time-weighted average (TWA).

    ppm    mg/m3

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