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a <br /> LEVEL B <br /> Personal protection is required. Level B is the area where <br /> maximum respiratory protection is required, however, there is a <br /> low probability of dermal toxicity. An area -may be designated as <br /> Level B when: <br /> Atmospheric concentrations or toxic contaminants are <br /> known to be greater than the protection factors <br /> supplied by air-purifying respirators or when <br /> atmospheric concentrations or oxygen are less than <br /> 19 . 5%. <br /> Contamination of small areas of exposed skin by dermal <br /> toxic materials is unlikely. <br /> E�ipment Ensemble: <br /> , Recommended Protection Provided <br /> * pressure-demand, full- The same level of <br /> face SOBA or pressure- respiratory protection <br /> demand supplied air but less skin protection <br /> respirator with escape than Level A. It is the <br /> SCBA minimum level recommended <br /> for initial site entries <br /> * chemical resistant until the hazards have <br /> clothing (overalls and been further identified. <br /> long-sleeve jacket; <br /> hooded, one-or two-piece <br /> chemical splash suite; <br /> disposable chemical <br /> resistant one -piece <br /> suite) <br /> * inner and out chemical <br /> resistant gloves <br /> * chemical-resistant safety <br /> boot/shores <br /> * hard hat <br /> * two-way radio <br /> communications <br /> Optional: * coveralls ' <br /> * disposable boot covers <br /> * face shield <br /> * long cotton . underwear - <br />