Quantitative Fit-test. Quantitative respirator fit-testing uses the TSI PortaCount to measure leakage into the breathing zone of the respirator face piece.
Qualitative Fit-test. Qualitative fit-testing uses a challenge agent such as banana oil, saccharin or Bitrex. The test is subjective and relies on the worker's sense of taste or smell.
Medical Clearance. The employer shall provide a medical evaluation to determine the employee’s ability to use the respirator, before the employee is fit-tested or required to use the respirator in the work place.
Frequency of Fit-testing. Fit-tests must be performed annually. More frequent fit testing is necessary if the respirator use changes or if the employee’s physical condition is altered.