To provide a photocatalyst filter capable of accelerating the decomposing action of a product by ultraviolet rays without the need of a light emitting body such as an ultraviolet lamp and being used over a long period of time.
The photocatalyst filter comprises: a filter member 11 provided with active carbon 15 for capturing the product in the air and a photocatalyst attached to the active carbon 15 for accelerating the decomposing action of the product by the ultraviolet rays; a transmission part 13 formed at the upper part of an instrument panel 3; a transparent member 14 formed on an intake case 5; and a switching door 9 for outdoor air for intermittently interrupting radiation of sunlight 12 to the filter member 11. Thus, since the switching door 9 is separated from the transparent member 14 of the intake case 5 when taking in inner air, the sunlight 12 is radiated to the filter member 11 through the transmission part 13 and the transparent member 14. Also, since the switching door 9 covers the lower part of the transparent member when taking in outdoor air, the radiation of the sunlight 12 to the filter member 11 is interrupted.
OHASHI TOSHIO
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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