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Personal protective equipment is divided into four categories based on the degree of protection <br />afforded. <br />Level A protection should be worn when the highest level of respiratory, skin, eye and <br />mucous membrane protection is needed. A typical Level A ensemble includes: <br />o Positive pressure (pressure demand), self contained breathing apparatus (SCBA) <br />(NIOSH approved), or positive -pressure supplied air respirator with escape SCBA. <br />o Fully encapsulating chemical protective suit. <br />o Gloves, inner, chemical resistant. <br />o Gloves, outer, chemical resistant. <br />o Boots, chemical resistant, steel toe and shank; (depending on suit boot <br />construction, worn over or under suit boot.) <br />• Level B protection should be selected when the highest level of respiratory protection is <br />needed, but a lesser level of skin and eye protection Is needed. Level B protection is the <br />minimum level recommended on initial site entries until the hazards have been further <br />identified and defined by monitoring, sampling, and other reliable methods of analysis, <br />and equipment corresponding with those findings utilized. A typical Level B ensemble <br />includes: <br />o Positive -pressure (pressure -demand), self-contained breathing apparatus (NIOSH <br />approved), or positive -pressure supplied air respirator with escape SCBA. <br />o Chemical resistant clothing (overalls and long-sleeved jacket, coveralls, hooded <br />two-piece chemical splash suit, disposable chemical resistant coveralls.) <br />o Gloves, outer, chemical resistant. <br />o Gloves, inner, chemical resistant. <br />o Boots, outer, chemical resistant, steel toe and shank. <br />• Level C protection should be selected when the type of airborne substance is known, <br />concentration measured, criteria for using air -purifying respirators met, and skin and eye <br />exposure is unlikely. Periodic monitoring of the air must be performed. A typical Level C <br />ensemble includes: <br />o Full -face or half -mask, air -purifying respirator (NIOSH approved). <br />o Chemical resistant clothing (one piece coverall, hooded two piece chemical splash <br />suit, chemical resistant hood and apron, disposable chRrryc�ITe,�IS1 E.IVE D <br />o Gloves, outer, chemical resistant. ��KKII LFLF-- 1I�V.J_ IIPPIFF��� <br />o Gloves, inner, chemical resistant. AUG 2 2 2017 <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <br />