FILTERING PORTABLE SELF-RESCUER

individual respiratory organ protecting facilities. SUBSTANCE: filtering portable self-rescuer has veil, cartridge containing anti-aerosol filter, dessicant and hopcalite layers successively arranged in air flow direction, and inhalation and expiration valve system. Volume ratio of dessicant and hop...

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Bibliographische Detailangaben
Hauptverfasser:	KRAVCHENKOV A.Z, VOLOSEVICH B.A, KAMENER E.A, RABATUEV G.A, MARTYNOV O.P, DVORETSKIJ G.V, DIMKOVICH N.T, AFANAS'EVA T.S, CHEBYKIN V.V
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING
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Beschreibung
Zusammenfassung:	individual respiratory organ protecting facilities. SUBSTANCE: filtering portable self-rescuer has veil, cartridge containing anti-aerosol filter, dessicant and hopcalite layers successively arranged in air flow direction, and inhalation and expiration valve system. Volume ratio of dessicant and hopcalite layers is 1: (4-5), and area ratio of effective section of valve seat and cartridge section is 0.09-0.11. Filtering device possesses low breathing resistance and may be used in emergency situations for providing safe evacuation of people during fires in hotels, offices, multistory apartment buildings. EFFECT: increased efficiency, simplified construction and convenient usage. 1 dwg, 4 tbl