Respirator Program

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Respirator Program. Training Outline. Terms and Regulation requirements What is a Respirator Program? Breathing hazards Types of respirators Fitting & checking respirators Inspection & care of respirators Medical limitations of using respirators. Why Respirators. - PowerPoint PPT Presentation

Transcript of Respirator Program

  • Respirator Program

  • Training OutlineTerms and Regulation requirementsWhat is a Respirator Program?Breathing hazardsTypes of respiratorsFitting & checking respiratorsInspection & care of respiratorsMedical limitations of using respirators

  • Why RespiratorsWorkers Must be Protected Who:Are exposed to air contaminants (unknown or in excess of WCB OHS Reg.)May be exposed to IDLH atmosphereMay be exposed to O2 deficient atmosphereAt risk of accidental exposure

  • Terms UsedAirline respiratorAir purifying respiratorALARA substanceCanister or cartridgeEscape respiratorFit checkFit test

  • Terms Used - contd.HEPA filterIDLHMSDS SheetOxygen deficiencyQualitative fit testQuantitative fit testSCBA

  • The Respirator ProgramSurvey the workplace conditionsSteps to reduce exposureFormally assess remaining hazardsSelect and provide respiratorsProvide fitting, tests, training

  • Hazards & Risk AssessmentDetermine the nature of contaminantDetermine exposure probabilityDetermine permissible exposure limit

  • Respirator SelectionIs approved for contaminantCan be used within concentrations expectedWill be adequate for time reqd.Is the best choice for the workplace (heat, humidity, visibility, work mobility)Ensure adequate visibility

  • The Breathing HazardsParticle hazards (dusts, fibres, mists, fumes)Gaseous hazards (gases and vapours)Oxygen deficiencyCombination hazards

  • Particle HazardsFormed by breakdown of solidsSandingMillingCutting CrushingGrindingDrillingIrritate the airways, can cause diseaseAsbestos asbestosisSilica dust - silicosis

  • Mists Very small liquid dropsSprayingShakingMixingStirringCan irritate or damage exposed areas (skin, eyes, lungs, airways)Can damage internal organs

  • FumesTiny solid particles (boil off) WeldingSmeltingSolderingBrazingExposure can range from irritation to serious lung & nerve damage

  • Gaseous HazardsGases Carbon MonoxideChlorineVapours of liquids mix with airSolventsGasolineAcetoneCan enter blood damage nerves and internal organs

  • Oxygen DeficiencyAir is normally 21% O2 19.5 % O2 is requiredDeficiency can develop in tanks, sewers, pipelines.Oxygen depleted due to reaction (rot, rust, burning)Oxygen is replaced by other gases

  • Respirator LimitationsThe type and the uses of Respirators are limited STRICTLY to the selection and uses determined by the [[Corporation]] Respirator Program

    Specific hazards MUST be addressed by using ONLY the appropriate respirator

  • Types of RespiratorsAir PurifyingSingle UseHalf-face or Full-facePowered (air supplied)Supplied airSelf-contained (SCBA)

  • Air Purifying RespiratorsSingle UseHalf-face and Full-face air-purifying respirators (non-powered)

  • Single Use MasksMost commonly usedOnly used against lower levels of contaminantsThin filter with 2 strapsMust be formed around noseEventually clogged by dusts, mists, fumes

  • Disposable DontsStretch the respirator over the top of a hardhatFold respirators that are not designed to be foldedCut off strapsWear damaged or holed respirators

  • Half/Full Face RespiratorsClose-seal silicone or rubber facepieceOne or more canister/cartridgesOne-way valvesHalf mask covers nose, mouth and chinFull mask entire face covered

  • Half/Full Face Respirators - contd.Half masks can be disposable or with maintenance/replacement partsFull face masks are used where eye irritants may be present

  • Filter EfficiencyParticulate filters screen particles onlyChemical cartridge efficiency deteriorates:Smell or taste contaminatesLungs or throat feel irritatedEnd of Service indicator

  • Filter DontsDont use in O2 deficiencyDont use against very toxic gas/vapour (IDLH atmospheres)Dont use against concentrations above manufacturers limitsDont use against chemicals with poor warning properties

  • Filter MaintenanceStore in sealed plastic bagsReplace filters regularlyDate filters as they are installedMatch proper filter with the contaminant

  • Atmosphere Supplying RespiratorsSupplied-air (airline) respiratorsSelf-contained breathing apparatus (SCBA)

  • Supplied Air TypesHood or Helmet Airline SuppliedNo face sealNo resistance to breathingFull Face Airline SuppliedFace sealPositive pressure minimizes leak

  • Self-Contained Breathing Apparatus (SCBA)Full-face respirator with backpack air cylinderFully mobileUp to 60 minutes of air

  • Emergency RespiratorsEscape RespiratorsUsed for emergency escape onlyMust be carried or within immediate reachAvailable as air purifying or air supplyBite-block air supply are common in pulp millsSCBA type with air bottle with half or full mask or hood

  • Self-fit Checks& Fit Testing

  • Negative Pressure CheckDon & properly fit the respiratorGently cover the inletBreathe in to create a vacuumHold for 10 secondsThe facepiece should collapse slightly and STAY collapsed

  • Positive Pressure CheckDon & properly fit the respiratorGently cover the exhaust valve and breathe OUT slightly to bulge the facepieceThe facepiece should bulge and stay out for 10 seconds

  • Cold FitVery low temperatures can stiffen mask material (lose sealing properties)Allow time for material to flexAllow the respirator to warm-up

  • Fit TestingDone by a qualified personResults are documentedQualitative fit testIs a compound detected?Quantitative fit testConcentration inside/outside is compared

  • Why Fit is ImportantAll contaminants MUST be excludedEffective SEAL is essentialFacial hair must be clean shaven at the seal (including stubble)Eyeglass frames must not pass through sealing surface (use corrective respirator lenses)

  • Inspecting, Cleaning & Storing Respirators

  • Respirator InspectionInspect prior to each useBend and flex the respiratorLook for distortionCheck the yoke for cracksCheck the canister threadsCheck for missing gasketsCheck the inhalation valves

  • Respirator Inspection - contd.Examine exhalation valve and seats for damage and debrisCheck straps, harness, bucklesCheck strap elasticityEnsure cartridge is not expiredExamine canister for damageCheck the hoseCorrect any defects that are noted

  • CleaningClean after each use, for a new user, or as required by the manufacturerRemove: filters, cartridges and gaskets, head straps, demand and pressure valves, speaking diaphragms/equipment and any components recommended by manufacturer

  • Cleaning - contd.Discard any defective partsWash respirator components in warm water using mild detergentNEVER use solventsA brush may be usedThoroughly rinse in warm, running waterDisinfect

  • Cleaning - contd.Rinse again to remove disinfectant and detergentDrain all water and air dry (wiping with clean lint-free cloth is OK)Reassemble away from the cleaning area

  • Respirator StorageStore in a safe place (cabinet, locker) in its own storage containerDo not store with toolsPosition so facepiece, hoses and straps are not stretchedStore in a plastic bagSeal HEPA filters with tape prior to removingAvoid heat or direct sunlight

  • Medical Limitations

  • Medical FactorsDrug use, including alcoholHistory of breathing problemsBreathing difficulty when exertingHigh blood pressure or heart diseaseClaustrophobiaUse of medication with heart/lung side effects or lowered mental alertness

  • Medical Factors - contd.DiabetesEpilepsySome vision or skin problemsImpaired or non-existent sense of smellPhysical factors limiting donning or adjustment of respirator

  • Consult OH Physician

    A physician knowledgeable in occupational health will be consulted

  • SummaryThe Respirator Program Terms used Breathing hazards Selection, use, inspection, care and storage of respiratorsFit testing and cleaning proceduresMedical factors

  • Questions?