AIR FILTER, AIR PURIFIER HAVING THE SAME, AND METHOD FOR PRODUCING THE AIR FILTER

PROBLEM TO BE SOLVED: To provide an air filter, an air purifier having the air filter, and a method for producing the air filter that can maintain dust collecting performance at a high level and suppressing a pressure loss even in long-term use.SOLUTION: An air filter includes a base material part 1...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI KEITA, ORIBE MIO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RANGES SEPARATION TRANSPORTING VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an air filter, an air purifier having the air filter, and a method for producing the air filter that can maintain dust collecting performance at a high level and suppressing a pressure loss even in long-term use.SOLUTION: An air filter includes a base material part 12 whose surface is provided with a fiber layer 13 comprising a first nanofiber assembly 13a formed of thick nanofibers, and a second nanofiber assembly 13b formed of thin nanofibers. The weight per unit area of the first nanofiber assembly 13a is set more than the weight per unit area of the second nanofiber assembly 13b. High dust collecting performance is thereby ensured while reducing an initial pressure loss with the use of the fine nanofibers, and excellent performance is maintained even in long-term use by securing the amount of void in the fiber layer with the use of the thick nanofibers.