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Slide 33
    TEXT VERSION OF SLIDE:

    Title: TABLE 1 - ASSIGNED PROTECTION FACTORS
    Type: Data Table
    Content:
     
    TABLE 1 – ASSIGNED PROTECTION FACTORS5
    Respirator Type1,2 Quarter Mask Half Mask Full Face Helmet/Hood Loose-Fitting
    Air Purifying 5 310 50 ------------- ------------
    PAPR ------------- 50 1,000 425/1,000 25
    SAR
    • Demand
    • Continuous Flow
    • Pressure Demand/ other (+) pressure

    -------------
    -------------
    -------------
    10
    50
    50
    50
    1,000
    1,000
    -------------
    425/1,000
    -------------
    ------------
    25
    ------------
    SAR
    • Demand
    • Pressure Demand/ other (+) pressure

    -------------
    -------------
    10
    ---------
    50
    10,000
    50
    10,000
    ------------
    ------------
    1May use respirators assigned for higher concentrations in lower concentrations or when required use is independent of concentration.
    2These APF’s are only effective when employer has a continuing, effective respirator program per 1910.134.
    3This APF category includes filtering facepieces and elastomeric facepieces.
    4Must have manufacturer test evidence to support an APF of 1,000 or else these respirators receive an APF of 25.
    5These APFs do not apply to escape-only respirators. Escape respirators must conform to 1910.134(d)(2)(ii) or OSHA’s substance specific standards, if used with those substances.