Other

Toyo Roki Seizo Kabushiki Kaisha

Awa Paper Mfg. Co., Ltd.

Takeo Jo

Atsushi Suzuki

Katsumi Osaka

Katsumi Suzuki

Toshinori Oba

Jun Suzuki

Norihiko Matsushita

Yutaka Atsumi

There is provided an air filter, which has a long lifetime and permits to capture effectively carbon particles and reduce costs. The air filter has the first filter layerimpregnated with oil and the second filter layer, which is provided on the downstream side of the first filter layerand serves as a lipophobic layer having an oil-repellent property. The filter material of the first filter layerhas a higher density than the filter material of the second filter material

Air filter

The object of the present invention is to provide an air filter where the lifetime of the air filter is long and a carbon dust can be efficiently caught with keeping the cost low. The air filter of the present invention comprises a first filter layer impregnated with oil; an oil repellent layer disposed in the downstream side of the first filter layer , having the property of repelling the oil; and a second filter layer disposed in the downstream side of the oil repellent layer , impregnated with no oil. The transfer of the oil to the second filter layer is controlled by the oil repellent layer

Growing community of inventors

Tokushima, Japan

Takeo Jo