3M™ Qualitative Face Fit Test products offer a simple, direct way to meet OSHA qualitative fit-testing requirements. They can be used with any particulate or gas/vapor respirator with a dust/mist pre-filter to check face-to-respirator seal. They readily help satisfy OSHA respiratory protection program requirements and are easily used during respirator training. Two types of testing agents are available; saccharin (sweet) or Bitrex™ (bitter).