FIELD: mining art. SUBSTANCE: device has perforated partition and air duct positioned in reservoir. Salt members are made as bulk of lumpy salt material divided into upper and lower parts by means of perforated partition. One end of air duct is arranged in vacant part of reservoir, and the other end is positioned in lower part of salt member bulk. Reservoir casing is provided with corrugated inserts made of gastight material. EFFECT: satisfaction of vital necessities of man. 8 cl, 1 dwg
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