{ "item_title" : "Key Design Factors of Enclosed Cab Dust Filtration Systems", "item_author" : [" Andrew B. Cecala", "Centers for Disease Control and Preventi", "National Institute for Occupational Safe "], "item_description" : "Enclosed cabs are a primary means of reducing the silica dust exposure of equipment operators at surface mines. The National Institute for Occupational Safety and Health experimentally investigated various factor effects on cab air filtration system performance. The factors investigated were intake filter efficiency, intake air leakage, intake filter loading (filter flow resistance), recirculation filter use, and wind effects on cab particulate penetration. Adding an intake pressurizer fan to the filtration system was also investigated. NIOSH findings and recommendations are detailed.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/49/295/868/1492958689_b.jpg", "price_data" : { "retail_price" : "14.99", "online_price" : "14.99", "our_price" : "14.99", "club_price" : "14.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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