| abstract |
The method of producing disposable filtering respirators, hydrogen fluoride vapors andntar, especially benzo-a-pyrene, consisting of two or three layersnnonwovens, the outer layer of which is impregnated and then dried, andnheadband, sealing straps and an exhalation valve, characterized in that the outernthe needle punched nonwoven layer is impregnated with an aqueous solution of the containing slurrynin 1 dm3 40-50 g of aluminum chloride, 30-40 g of sodium hydroxide, 120-140 gnwater glass, 50-60 g of polyvinacet, 20-30 g of sulfuric acid, 5-10 g of fragrance concentratenand 5-10 g of cerium nitrate. |