3Respirator Classes Air Purifying Supplied Air SCBA Remove air contaminants by filtering, absorbing, or adsorbing as air passes through a filtering mechanismSupplied AirUsed when:Contaminant has no warning propertiesConcentrations too high for APREnvironment is Immediately Dangerous to Life or Health (IDLH)SCBAWhy do we care what kind of respirator we use? One supplies oxygen, the other doesn’t (kind of important)
5IDLH Immediately Dangerous to Life or Health Caused by Oxygen deficiencyLethal concentrations of toxic gasesCaused byEductorsPaintingCHTSpilled HAZMATFreonPoor ventilation
6Cartridges Cartridge life depends on Concentration of the contaminantUser breathing rate and volumeHumidity in the airOther factorsDo not use smell as an indicator of breakthrough!
7Cartridges Filters/Cartridges are color coded Organic vapor (OV) blackParticle filter (HEPA) -- purpleAcid gas yellow / whiteAmmonia greenDO NOT “mix-and-match” respirator components- -ILLEGAL!
8Responsiblities All Hands Fully complete the medical evaluation questionnaireGet fit testedInspect respirators before and after each usePerform positive & negative seal checks prior to each useReport malfunctions to supervisorPrevent damage or loss to respiratory equipment
9Medically Qualify Some medical problems may prevent wearing respirator Respiratory, cardiovascular diseasesPhysical deformitiesMedicationsNeurological problemsPsychological conditions
10Fit Testing Respirators exist in variety of styles, shapes, sizes Half and full facepiece respirators come in small, medium, and large sizesEach user must be tested in the mask they will useFit testing conducted by trained individual to ensure respirator does not leak
11Positive & Negative Fit Checks Required every time respirator is donned.Positive Seal CheckCover exhalation valve and breathe out slightlyNegative Seal CheckCover inhalation valve/cartridge and inhaleMask should not leak around face seal
12Wearing a RespiratorWearing of spectacles, corrective glasses, face shields, goggles, or other eye/face protection equipment shall not interfere with the seal of the facepiece to the face.Facial hair is prohibited!
13Cleaning & Maintenance InspectionAll reusable respirators shall be routinely inspected before and after each useMissing parts renders a respirator uselessStore in zip-lock bagKeep away from heat or strong chemicalsKeep in cool dark place