FILTERING MATERIAL FOR AIR CLEANING Russian patent published in 2003 - IPC

Abstract RU 2214846 C2

FIELD: filtering material for individual respiratory organ protecting devices, such as respirators. SUBSTANCE: material has two outer layers of chemical filaments and intermediate layer of activated carbon fabric having thickness of 0.4-0.5 mm and porosity of 0.3-0.35 cu.cm/g. Layers are secured with one another by needle stitching. EFFECT: reduced dusting of activated carbon-based sorption layer and improved filtering and sorption properties. 4 cl, 1 dwg

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RU 2 214 846 C2

Authors

Tolochkova O.N.

Balov A.A.

Dates

2003-10-27—Published

2001-10-31—Filed