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Respirators should only be used as a "last line of defense" when engineering control systems are not feasible. Engineering control systems, such as.

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Presentation on theme: "Respirators should only be used as a "last line of defense" when engineering control systems are not feasible. Engineering control systems, such as."— Presentation transcript:

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3 Respirators should only be used as a "last line of defense" when engineering control systems are not feasible. Engineering control systems, such as adequate ventilation or scrubbing of contaminants should be used to negate the need for respirators.

4 GENERAL USE CONDITIONS JOB TASK DESCRIPTION DURATION AND FREQUENCY OF USE LOCATION OF USE PHYSICAL DEMANDS MEDICAL CLEARANCE

5 NIOSH recommends that air sampling be conducted to determine exposure levels found in the workplace. A combination of air sampling and exposure modeling is often used to make reasonable estimates of exposure. Ideally, this determination should be made by a professional industrial hygienist.

6 PRIOR TO USING A RESPIRATOR YOU MUST BE TRAINED IN ACCORDANCE WITH OSHA STANDARD BE TRAINED IN ACCORDANCE WITH OSHA STANDARD BE MEDICALLY CLEARED TO USE A RESPIRATOR BE MEDICALLY CLEARED TO USE A RESPIRATOR SELECT THE PROPER MASK SELECT THE PROPER MASK BE FITTED FOR THAT MASK BE FITTED FOR THAT MASK

7 RESPIRATOR SELECTION BASED ON SPECIFIC THREAT BASED ON SPECIFIC THREAT BASED ON QUANTITY OR AIR CONCENTRATION OF THREAT BASED ON QUANTITY OR AIR CONCENTRATION OF THREAT

8 THREATS OXYGEN DEFICIENT ATMOSPHERE OXYGEN DEFICIENT ATMOSPHERE IDLH ATMOSPHERES IDLH ATMOSPHERES UNKNOWN LEVEL OF CONTAMINANT UNKNOWN LEVEL OF CONTAMINANT HARMFUL PARTICULATES HARMFUL PARTICULATES HARMFUL GASSES OR VAPORS HARMFUL GASSES OR VAPORS

9 OXYGEN DEFICIENT ATMOSPHERES BREATHING AIR IS COMPOSED OF A MIXTURE OF SEVERAL GASSES BREATHING AIR IS COMPOSED OF A MIXTURE OF SEVERAL GASSES OXYGEN COMPRISES 19% OXYGEN COMPRISES 19% BODY FUNCTION DETERIORATES AT LESS THAN 19% OXYGEN BODY FUNCTION DETERIORATES AT LESS THAN 19% OXYGEN

10 CAUSES OF OXYGEN DEFICIENCY OXYGEN CONSUMPTION OXYGEN CONSUMPTION OXYGEN DILUTION OXYGEN DILUTION OXYGEN SUBSTITUTION OXYGEN SUBSTITUTION

11 OXYGEN CONSUMPTION AVAILABLE O2 IS USED UP THROUGH BREATHING, WORK PROCESS OR ACCIDENT/EMERGENCY

12 OXYGEN DILUTION INCREASING THE PERCENTAGE OF ONE OR MORE GASSES BRINGS DOWN THE PERCENTAGE OF OXYGEN

13 OXYGEN SUBSTITUTION CERTAIN GASSES SUCH AS CARBON MONOXIDE OR CYANIDE CAN INTERFERE WITH THE DELIVERY OF OXYGEN TO THE CELLS IN OUR BODY

14 PARTICULATES SOLIDS IN THE AIR SOLIDS IN THE AIR MAY BE LIQUIDS (MISTS & SPRAYS) MAY BE LIQUIDS (MISTS & SPRAYS) MAY BE FUMES (METAL PARTICLES RELEASED BY HEATING) MAY BE FUMES (METAL PARTICLES RELEASED BY HEATING) SOME BE VERY HARMFUL (LEAD & ASBESTOS) SOME BE VERY HARMFUL (LEAD & ASBESTOS) OTHERS MAY BE NUISANCE DUSTS OTHERS MAY BE NUISANCE DUSTS

15 GASSES AND VAPORS EASILY DIFFUSE THROUGHOUT A ROOM EASILY DIFFUSE THROUGHOUT A ROOM MAY HAVE COLOR MAY HAVE COLOR MAY HAVE ODOR MAY HAVE ODOR MAY BE IRRITATING MAY BE IRRITATING MAY HAVE NO IDENTIFYING PROPERTIES MAY HAVE NO IDENTIFYING PROPERTIES

16 TYPES OF RESPIRATORS POSITIVE PRESSURE

17 POWERED BY YOUR LUNGS POWERED BY YOUR LUNGS DRAWS CONTAMINANT TOWARDS THE MASK DRAWS CONTAMINANT TOWARDS THE MASK LOWER END OF PROTECTION SCALE LOWER END OF PROTECTION SCALE DUST MASKS ½ MASKS FULL FACE MASKS

18 POSITIVE PRESSURE SUPPLIES AIR TO THE USER SUPPLIES AIR TO THE USER COMPRESSED AIR TANKS COMPRESSED AIR TANKS COMPRESSOR COMPRESSOR POWERED AIR-PURIFYING RESPIRATOR (PAPR) POWERED AIR-PURIFYING RESPIRATOR (PAPR) PUSHES CONTAMINANT AWAY FROM THE MASK PUSHES CONTAMINANT AWAY FROM THE MASK HIGH END OF PROTECTION SCALE HIGH END OF PROTECTION SCALE

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20 COMPRESSED AIR GRADE D QUALITY GRADE D QUALITY 19% OXYGEN & REMAINING GASSES EQUAL TO ROOM AIR 19% OXYGEN & REMAINING GASSES EQUAL TO ROOM AIR WATER VAPOR WATER VAPOR HYDROCARBONS HYDROCARBONS DELIVERED BY TANKS OR COMPRESSORS DELIVERED BY TANKS OR COMPRESSORS

21 GRADE D AIR

22 COMPRESSORS SPECIFIC FOR RESPIRATOR USE SPECIFIC FOR RESPIRATOR USE SUBJECT TO FAILURE SUBJECT TO FAILURE LOCATION OF INLET CRITICAL LOCATION OF INLET CRITICAL SYNTHETIC AND OIL LUBRICATED MODELS SYNTHETIC AND OIL LUBRICATED MODELS OIL LUBRICATED MUST HAVE CARBON MONOXIDE MONITOR AND ALARM OIL LUBRICATED MUST HAVE CARBON MONOXIDE MONITOR AND ALARM FILTERS REMOVE FILTERS REMOVECONTAMINANTS

23 NOT ALL COMPRESSORS ARE CREATED EQUAL!

24 EMERGENCY ESCAPE BA FOR IMMEDIATE ESCAPE FROM IDLH ATMOSPHERES FOR IMMEDIATE ESCAPE FROM IDLH ATMOSPHERES 5, 10 OR 15 MINUTE AIR SUPPLY DEPENDENT ON THE UNIT AND/OR USER 5, 10 OR 15 MINUTE AIR SUPPLY DEPENDENT ON THE UNIT AND/OR USER MANDATORY FOR CONFINED SPACE AND IDLH MANDATORY FOR CONFINED SPACE AND IDLH

25 RESPIRATOR SELECTION OXYGEN DEFICIENT ATMOSPHRES OXYGEN DEFICIENT ATMOSPHRES IMMEDIATELY DANGEROUS TO LIFE AND HEALTH ATMOSPHERES (IDLH) IMMEDIATELY DANGEROUS TO LIFE AND HEALTH ATMOSPHERES (IDLH) RESPIRATOR CHOICES SELF CONTAINED BREATHING APPARATUS TYPE C SYSTEM WITH AN ESCAPE SCBA

26 SCBA APPLICATIONS FIRE FIGHTING FIRE FIGHTING CBRN RESPONSE CBRN RESPONSE GENERAL INDUSTRY GENERAL INDUSTRY

27 SCBA LIMITS PRIMARILY LIMITED BY TIME OF TASK PRIMARILY LIMITED BY TIME OF TASK TANKS RATED FOR 15, 30, 45 OR 60 MINUTES TANKS RATED FOR 15, 30, 45 OR 60 MINUTES PHYSICAL CONDITION OF USER PHYSICAL CONDITION OF USER PHYSICAL EXERTION PHYSICAL EXERTION STRESS STRESS WEIGHT OF UNIT WEIGHT OF UNIT

28 PROTECTION FACTOR EACH RESPIRATOR TYPE HAS AN ASSIGNED PROTECTION FACTOR (APF) EACH RESPIRATOR TYPE HAS AN ASSIGNED PROTECTION FACTOR (APF) APF IS USED IN RESPIRATOR SELECTION APF IS USED IN RESPIRATOR SELECTION ½ MASK 10 FULL FACEPIECE 50

29 APFs OSHA PEL IS THE MAXIMUM ALLOWABLE LEVEL OF CONTAMINANT EXPOSURE IN THE RESPIRATOR OSHA PEL IS THE MAXIMUM ALLOWABLE LEVEL OF CONTAMINANT EXPOSURE IN THE RESPIRATOR APF MULTIPLIED BY THE PEL IS THE MAXIMUM ALLOWABLE LEVEL OF CONTAMINANT OUTSIDE THE MASK APF MULTIPLIED BY THE PEL IS THE MAXIMUM ALLOWABLE LEVEL OF CONTAMINANT OUTSIDE THE MASK

30 EXAMPLE EXAMPLE ½ MASK APF = 10 ASBESTOS PEL = 0.1 f/cc HIGHEST TOLERABLE LEVEL INSIDE THE MASK = 0.1 f/cc HIGHEST CONCENTRATION OUTSIDE THE MASK = 1 f/cc 10 (APF) x 0.1 f/cc (PEL) = 1 f/cc

31 RESPIRATOR SELECTION PARTICULATES PARTICULATES FILTERS FILTER EFFICIENCY VARIES N-100P-100R % N-99P-99R-9999% N-95P-95P-9595% EFFECTIVE AT 0.3 MICRONS

32 N R P N = NON RESISTANT TO OIL OK FOR SOLID & WATER BASED AEROSOLS R = RESISTANT TO OIL OK FOR SOLID & WATER BASED AEROSOLS P = RESISTANT TO OIL OK FOR SOLID & WATER BASED AEROSOLS

33 FILTER CHANGES IN GENERAL, REPLACE IF DAMAGED, SOILED, NOTICEABLE BREATHING RESISTANCE IN GENERAL, REPLACE IF DAMAGED, SOILED, NOTICEABLE BREATHING RESISTANCE N FILTERS EVERY 8 HOURS IF HEAVY DUST LOAD UNLESS DETERMINED TO BE EFFECTIVE BEYOND 8 HOURS (NIOSH) N FILTERS EVERY 8 HOURS IF HEAVY DUST LOAD UNLESS DETERMINED TO BE EFFECTIVE BEYOND 8 HOURS (NIOSH) P FILTERS EVERY 8 HOURS IF OIL AEROSOL IS PRESENT UNLESS DETERMINED TO BE EFFECTIVE BEYOND 8 HOURS (NIOSH) P FILTERS EVERY 8 HOURS IF OIL AEROSOL IS PRESENT UNLESS DETERMINED TO BE EFFECTIVE BEYOND 8 HOURS (NIOSH) R FILTERS CHANGES BASED ON MANUFACTURERS RECOMMENDATIONS WHEN OIL IS PRESENT R FILTERS CHANGES BASED ON MANUFACTURERS RECOMMENDATIONS WHEN OIL IS PRESENT

34 Although odor should not be relied on for cartridge/canister change out, workers should be trained to exit the contaminated area whenever they detect the odor or experience any irritation symptoms of the contaminant. Although odor should not be relied on for cartridge/canister change out, workers should be trained to exit the contaminated area whenever they detect the odor or experience any irritation symptoms of the contaminant. If workers are detecting the odor before the end of the change schedule, the respirator program administrator should reevaluate this respirator use; i.e., the change schedule, the workplace concentrations or the other use conditions (relative humidity (RH), work rate, etc.). If workers are detecting the odor before the end of the change schedule, the respirator program administrator should reevaluate this respirator use; i.e., the change schedule, the workplace concentrations or the other use conditions (relative humidity (RH), work rate, etc.).

35 FILTER/CARTRIDGE CODES COLOR CODED BY CONTENTS AND CONTAMINANTS COLOR CODED BY CONTENTS AND CONTAMINANTS INDUSTRY WIDE STANDARD INDUSTRY WIDE STANDARD OLIVECOMBINATION WHITE ACID GAS BLACKORGANICS GREEN AMMONIA GAS YELLOWAG/OV PURPLEN-100 ORANGE R-100, 99, P-99, 95 TEAL (NO OIL) N-100, 99, 95

36 How to inspect, put on and remove, use, and check the seals of the respirator Prior to the selection process, the test subject shall be shown how to put on a respirator, how it should be positioned on the face, how to set strap tension and how to determine an acceptable fit. Prior to the selection process, the test subject shall be shown how to put on a respirator, how it should be positioned on the face, how to set strap tension and how to determine an acceptable fit.

37 Negative pressure check CLOSE OFF THE INLET OPENING OF THE FILTER, CANISTER OR CARTRIDGE USE HANDS, LATEX GLOVE CAN BE USED IF HANDS CAN NOT BLOCK THE INLET INHALE LIGHTLY AND HOLD FOR 10 SECONDS FACEPIECE SHOULD COLLAPSE SLIGHLTY NO INWARD LEAKAGE SHOULD BE NOTED

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39 Positive pressure check CLOSE OFF THE EXHALATION VALVE CLOSE OFF THE EXHALATION VALVE GENTLY EXHALE INTO THE MASK GENTLY EXHALE INTO THE MASK PRESSURE IN THE MASK SHOULD INCREASE PRESSURE IN THE MASK SHOULD INCREASE NO OUTWARD LEAKAGE SHOULD BE DETECTABLE NO OUTWARD LEAKAGE SHOULD BE DETECTABLE

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41 USER SEAL CHECK USED FOR TIGHT FITTING MASKS USED FOR TIGHT FITTING MASKS NOT A SUBSTITUTE FOR QUALITATIVE OR QUANTITATIVE FIT TESTING NOT A SUBSTITUTE FOR QUALITATIVE OR QUANTITATIVE FIT TESTING USED EACH TIME A RESPIRATOR IS PUT ON USED EACH TIME A RESPIRATOR IS PUT ON USE POSITIVE OR NEGATIVE PRESSURE CHECK USE POSITIVE OR NEGATIVE PRESSURE CHECK MAY SUBSTITUTE MANUFACTURERS USER SEAL CHECK METHOD MAY SUBSTITUTE MANUFACTURERS USER SEAL CHECK METHOD

42 FACIAL HAIR The employer shall not permit respirators with tight-fitting facepieces to be worn by employees who have facial hair that comes between the sealing surface of the facepiece and the face or that interferes with valve function or any condition that interferes with the face-to-facepiece seal or valve function.

43 Facial hair The test shall not be conducted if there is any hair growth between the skin and the facepiece sealing surface, such as stubble beard growth, beard, mustache or sideburns which cross the respirator sealing surface. Any type of apparel which interferes with a satisfactory fit shall be altered or removed. The test shall not be conducted if there is any hair growth between the skin and the facepiece sealing surface, such as stubble beard growth, beard, mustache or sideburns which cross the respirator sealing surface. Any type of apparel which interferes with a satisfactory fit shall be altered or removed.

44 QUANTITATIVE FIT TESTING OBJECTIVE TEST OBJECTIVE TEST MEASURES LEVELS OF AMBIENT DUST OUTSIDE AND INSIDE FACE PIECE MEASURES LEVELS OF AMBIENT DUST OUTSIDE AND INSIDE FACE PIECE COMPARES OUTSIDE TO INSIDE DUST LEVELS COMPARES OUTSIDE TO INSIDE DUST LEVELS ESTABLISHED TOLERANCES ESTABLISHED TOLERANCES MUST BE USED IF FIT FACTOR IS OVER 100 MUST BE USED IF FIT FACTOR IS OVER 100

45 FIT FACTORS TIGHT FITTING MASK FIT FACTOR ½ MASK 100 FULL FACEPIECE 500

46 WHAT IS THE FIT FACTOR? FIT FACTOR OF 100 MEANS NO MORE THAN ONE PARTICLE OF DUST IN THE MASK EVERY 100 PARTICLES OF DUST OUTSIDE THE MASK FOR

47 QUALITATIVE FIT TEST SUBJECTIVE SUBJECTIVE CHALLENGE AGENT CHALLENGE AGENT IRRITANT SMOKE (STANNIC CHLORIDE) ODOR (BANANA OIL) TASTE (SACCHARINE, BITREX) MAY BE USED IF FIT FACTOR TO BE ACHIEVED IS 100 OR LESS

48 RESPIRATOR CLEANING General procedures for cleaning respirators General procedures for cleaning respirators May use alternative cleaning recommendations provided by the manufacturer of the respirators provided such procedures are as effective May use alternative cleaning recommendations provided by the manufacturer of the respirators provided such procedures are as effective Must ensure that the respirator is properly cleaned and disinfected in a manner that prevents damage to the respirator and does not cause harm to the user. Must ensure that the respirator is properly cleaned and disinfected in a manner that prevents damage to the respirator and does not cause harm to the user.

49 RESPIRATOR CLEANING Respirators issued to more than one employee shall be cleaned and disinfected before being worn by different individuals Respirators issued to more than one employee shall be cleaned and disinfected before being worn by different individuals Respirators maintained for emergency use shall be cleaned and disinfected after each use Respirators maintained for emergency use shall be cleaned and disinfected after each use Respirators used in fit testing and training shall be cleaned and disinfected after each use Respirators used in fit testing and training shall be cleaned and disinfected after each use

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