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© Business & Legal Reports, Inc. 0812 Session Objectives You will be able to: Identify the hazards of airborne contaminants Identify and use appropriate respiratory protection Recognize the limitations and capabilities of respirators in our workplace Inspect, maintain, and store respirators
© Business & Legal Reports, Inc. 0812 Session Objectives (cont.) Use respirators under dangerous or emergency conditions Understand procedures for medical evaluations and recognize the medical signs and symptoms that may prevent effective respirator use
© Business & Legal Reports, Inc. 0812 Respirator Use Locations Locations where respirators are required Types of airborne contaminants
© Business & Legal Reports, Inc. 0812 Inhalation Hazards Airborne particles Dust, fog, smoke, fume, mist, aerosol Chemical vapor or gas Biological organisms Bacteria, mold, spores, fungi, or viruses Lack of adequate oxygen
© Business & Legal Reports, Inc. 0812 Immediately Dangerous to Life or Health (IDLH) Immediately dangerous to life or health (IDLH) atmosphere Oxygen deficiency is an example of IDLH IDLH conditions occur in confined spaces, large chemical spills, or chemical fires Protect with a full facepiece supplied-air respirator (SAR) with self-contained air, or self-contained breathing apparatus (SCBA) Standby person must be trained to conduct emergency rescue
© Business & Legal Reports, Inc. 0812 How Respirators Work Prevent inhalation of airborne contaminants Generate negative pressure in facepiece Generate positive pressure in facepiece Air is passed through a filter, sorbent, or catalyst that traps contaminants
© Business & Legal Reports, Inc. 0812 When Are Respirators Needed? When other controls are inadequate or not feasible During installation of engineering controls During maintenance operations While performing nonroutine tasks For emergency response
© Business & Legal Reports, Inc. 0812 Types of Facepieces Tight-fitting Straps or clamps Half face, full face, or mouthpiece Dust mask (durable or single-use) Loose-fitting Hood or helmet
© Business & Legal Reports, Inc. 0812 Assigned Protection Factor (APF) The minimum level of protection of a properly functioning respirator APF 10 means one-tenth of the airborne contaminant filtered by the respirator may be inhaled Each type of respirator must have an APF for each contaminant it filters
© Business & Legal Reports, Inc. 0812 Air-Purifying Respirator (APR) APRs are negative pressure Simply filter the air, not supply oxygen Particulate Gas and vapor Combination Limited to non-IDLH atmospheres, maximum APF of 50
© Business & Legal Reports, Inc. 0812 Half-Face APR Maximum APF of 10 No protection for the face or eyes Sight is not impaired, and no need for corrective lenses Not as heavy as full face respirator
© Business & Legal Reports, Inc. 0812 Full-Face APR Maximum APF of 50 Protects the face and eyes Difficult to see when the facepiece fogs up Difficult to speak Requires lens correction
© Business & Legal Reports, Inc. 0812 Powered Air-Purifying Respirator (PAPR) Maximum APF 25 to 1000 A blower forces ambient air through filter No separate or self-contained air supply
© Business & Legal Reports, Inc. 0812 Prohibited Uses of APR and PAPR IDLH atmosphere, including oxygen- deficient Unknown airborne contaminants Contaminants with poorly understood exposure limits or other warnings Specific chemicals Contaminant concentrations exceed maximum use concentration (MUC) limits MUC=The OSHA Permissible Exposure Limit (PEL) x APF
© Business & Legal Reports, Inc. 0812 Atmosphere-Supplying Provides a separate or self-contained air supply from outside the ambient atmosphere SAR SCBA Primary types are continuous flow, demand, and pressure demand
© Business & Legal Reports, Inc. 0812 Image Credit: OSHA Dust Mask (Filtering Facepiece) Negative pressure Filter removes particulates (dust) The filter is an integral part of the mask The entire mask is composed of the filter material Hazard protection is very limited
© Business & Legal Reports, Inc. 0812 Escape-Only It is intended only for emergency exit Used mainly for IDLH atmospheres
© Business & Legal Reports, Inc. 0812 Inhalation Hazards and RespiratorsQuestions? Any questions about the hazards of airborne contaminants at our facility? The types of respirators used at the facility?
© Business & Legal Reports, Inc. 0812 Respirator Selection The physical state of the contaminants Contaminant concentration Oxygen deficiency Warning properties of the contaminant(s) Potential for an IDLH atmosphere Length of time of respirator use
© Business & Legal Reports, Inc. 0812 Respirator Selection (cont.) The workload of the wearer The working environment (e.g., temperature) The proper filter media for the given contaminant Potential hazard of skin contact with contaminants Potential hazard of eye contact with contaminants
© Business & Legal Reports, Inc. 0812 Respirators for Non-IDLH Use If cartridges have no end-of-service-life indicator, a change schedule must be used Added table for oxygen-deficient atmospheres based on altitude
© Business & Legal Reports, Inc. 0812 Filters, Cartridges, and Canisters All must be labeled and color-coded with the NIOSH approval label The label must not be removed and must remain legible Marked with NIOSH, manufacturers name and part number, and cartridge or filter type Matrix approval label supplied End-of-service-life indicator (ESLI) must be NIOSH-certified for APRs
© Business & Legal Reports, Inc. 0812 Respirator Filter Color Codes Acid gas (e.g., sulfuric acid)white Acid gas and organic vaporyellow Acid, ammonia, and organic vaporsbrown Acid gas, ammonia, carbon monoxide, and organic vaporsred Ammoniagreen
© Business & Legal Reports, Inc. 0812 Respirator Filter Color Codes (cont.) Carbon monoxide gasblue Chlorinewhite and yellow Dust, fumes, and mists (non-radioactive)orange Organic vaporblack Other vapors and gasesolive
© Business & Legal Reports, Inc. 0812 Fit Test Required for any tight-fitting facepiece before use Ensures no contaminants leak into the facepiece Retesting required annually, and after weight loss or dental work No beards allowed
© Business & Legal Reports, Inc. 0812 Qualitative Fit Test Negative pressure test for APRs Exposure less than 10 times the exposure limit PAPRs and atmosphere-supplying in negative pressure mode Subjectivesmell or taste Irritant smoke and ambient aerosol
© Business & Legal Reports, Inc. 0812 Quantitative Fit Test Numeric measurementfit factorof leakage into the respirator Controlled negative pressure Portacount For negative-pressure APRs, exposure levels greater than 10 times the occupational exposure limit
© Business & Legal Reports, Inc. 0812 Check the Seal No facial hair or glasses are allowed that prevent a tight seal The facepiece seal is paramount Perform a seal check each time you put on the respirator Conduct a positive and negative pressure check
© Business & Legal Reports, Inc. 0812 Voluntary Use of Respirators You can use your own respirator if it does not create a hazard Read the information for voluntary users of respirators Program for nonrequired users No program required if only dust masks are used
© Business & Legal Reports, Inc. 0812 Inspect Respirator Carefully Inspect the respirator before each use and during cleaning, following manufacturers instructions Emergency respirators Check at least monthly when not in use Check before and after each use Check elastic parts for pliability and deterioration Report any problems or defects
© Business & Legal Reports, Inc. 0812 APRsMaintain and Clean Components Toss out dust masks Remove filters Wash and rinse Carefully replace valves Dry with cloth or air dry Reassemble, then test
© Business & Legal Reports, Inc. 0812 Store Properly Protect equipment from damage, sunlight, or contamination Store dry respirator and cartridges in a clean container or bag Do not allow the facepiece to be distorted
© Business & Legal Reports, Inc. 0812 Respirator Care and Use Questions? Any questions about your responsibilities for the care and use of respirators and their components? Any questions about the respiratory protection plan or dangerous atmospheres?
© Business & Legal Reports, Inc. 0812 Medical Evaluation An initial medical evaluationa questionnaireis required before fit testing and respirator use All medical evaluations must be confidential Employees must be allowed to discuss the questionnaire with the physician Follow-up evaluations must be conducted if conditions of use or user health change
© Business & Legal Reports, Inc. 0812 Regulatory Requirements 29 CFR 1910.134 Requires a written respiratory protection plan Employee training Medical evaluation Fit testing Provide respirators at no cost to employee
© Business & Legal Reports, Inc. 0812 Employers General Requirements Use NIOSH-approved respirators only Evaluate the workplace hazards Select respirators from multiple models and sizes Where exposure to hazards cant be estimated, consider it as IDLH
© Business & Legal Reports, Inc. 0812 Written Respiratory Protection Plan Written operating procedures Respirator selection, use, training, and fitting Respirator maintenance, storage, and inspection Work area surveillance Medical examinations Program evaluation
© Business & Legal Reports, Inc. 0812 Additional Plan Requirements Must be site specific Must have a program administrator
© Business & Legal Reports, Inc. 0812 Whats Wrong Here? Worker applying trichloroethane in a confined space Half-face respirator Becomes unconscious List the hazards
© Business & Legal Reports, Inc. 0812 What Can Be Done? What are the proper safety procedures to prevent exposure?
© Business & Legal Reports, Inc. 0812 Key Points to Remember Understand the physical and health hazards of dangerous airborne substances in your work area Make sure appropriate engineering controls are implemented before using a respirator Know how to properly don, fit, use, inspect, clean, and store respirators Inspect respirators and cartridges before each use
© Business & Legal Reports, Inc. 0812 Key Points to Remember (cont.) Always make sure the right respirator and cartridge are matched to the appropriate working conditions and contaminants
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