AIR FILTER MATERIAL, AIR FILTER PACK, AND AIR FILTER UNIT

An air filter medium (10) includes a first porous PTFE membrane (1) and a second porous PTFE membrane (2). The air filter medium (10) has a first main surface (11) and a second main surface (12), and the first porous PTFE membrane (1) and the second porous PTFE membrane (12) are arranged so that an...

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Bibliographische Detailangaben
Hauptverfasser:	YANAGI, Toshiki, MORI, Masaaki, NIKI, Takashi, DAIMON, Atsushi, WADA, Shiho
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	An air filter medium (10) includes a first porous PTFE membrane (1) and a second porous PTFE membrane (2). The air filter medium (10) has a first main surface (11) and a second main surface (12), and the first porous PTFE membrane (1) and the second porous PTFE membrane (12) are arranged so that an air flow moving from the first main surface (11) to the second main surface (12) passes through the first porous PTFE membrane (1) and subsequently through the second porous PTFE membrane (2). A thickness of the first porous PTFE membrane (1) is in the range of 4 to 40 µm and a specific surface area of the first porous PTFE membrane (1) is 0.5 m/g or less.