FILTER MEDIUM AND AIR FILTER UNIT USING THE SAME

Title:

FILTER MEDIUM AND AIR FILTER UNIT USING THE SAME

Document Type and Number:

WIPO Patent Application WO/1998/026860

Kind Code:

A1

Abstract:

A filter medium which has an average pore diameter of more than 0.5 $g(m)m, a pressure loss of 2-50 mmH�2?O determined when air is permeated therethrough at a velocity of flow of 5.3 cm/sec, and a PF value of 18-12, which is calculated in accordance with the following equation on the basis of this pressure loss and a collection efficiency using DOP of a grain size of 0.10-0.12 $g(m)m. PF value = [ -log (permeability (%)/100) ] / [ pressure loss ] * 100. Permeability (%) = 100 - collection efficiency (%).

More Like This:

JP3512023	PARTS FOR AIR FILTER, PACKAGING BODY THEREFOR AND METHOD OF PACKAGING
JP2020052057	CESIUM ADSORPTION APPARATUS AND ADSORPTION METHOD

Inventors:

TANAKA OSAMU (JP)
KUSUMI TOSHIO (JP)
SHIBUYA YOSHIYUKI (JP)
TANO TAKESHI (JP)

Application Number:

PCT/JP1997/004384

Publication Date:

June 25, 1998

Filing Date:

December 01, 1997

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DAIKIN IND LTD (JP)
TANAKA OSAMU (JP)
KUSUMI TOSHIO (JP)
SHIBUYA YOSHIYUKI (JP)
TANO TAKESHI (JP)

International Classes:

B01D39/16; B01D67/00; B01D69/02; B01D69/08; B01D69/10; B01D71/36; B29C55/00; B29C55/06; C08J9/00; (IPC1-7): B01D71/36; B01D69/08; C08J9/00; B01D39/16

Domestic Patent References:

WO1993013849A1	1993-07-22
WO1994016802A1	1994-08-04

Foreign References:

JPH05202217A	1993-08-10
JPH08318114A	1996-12-03
JPH05269904A	1993-10-19
JPH05504717A	1993-07-22
JP4503635A

Other References: