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LEVEL B <br /> i <br /> Personal protection is requre`d. Leve]. B is the area where <br /> maximum i <br /> respiratory protection s required, however, there <br /> is a low probability of dermal toxicity. An area may be <br /> designated as Level B when: " <br /> a <br /> Atmospheric concentrations of toxic contaminants <br /> are known to be greater than the protection <br /> factors supplied by air-purifying respirators or <br /> when atmospheric concentrations of oxygen are less <br /> than 19 .5%. <br /> Contamination of small areas of exposed skin by <br /> dermal toxic materials is unlikely. <br /> R <br /> Ecruipment Ensemble• <br /> Recommended Protection Provided <br /> i <br /> * pressure-demand, full- The same level of <br /> face SCBA or pressure- 'J. respiratory pro- { <br /> demand supplied-air tection but less <br /> respirator with escape ,`a skin protection than <br /> SCBA i Level A. It is the <br /> minimum level re <br /> * chemical resistant clothing commended for in- <br /> (overalls and long-sleeve ; itial site entries <br /> jacket; hooded, one- or until the hazards <br /> two-piece chemical splashk have been further <br /> suit; disposable chemical identified. <br /> resistant one-piece suit) ', <br /> e <br /> * inner and outer chemical- 0 <br /> resistant gloves <br /> * chemical-resistant safety ': <br /> boot/shoes <br /> s <br /> * hard hat <br /> * two-way radio communications <br /> I <br /> optional:-- .:- * coveralls <br /> disposable boot covers <br /> * face shield <br /> * long cotton underwear <br />