CIRCULATING AIR STERILIZATION DEVICE

WIPO Patent Application WO/2023/228681

A1

This circulating air sterilization device comprises: a sterilization chamber; an annular light source that is provided in the sterilization chamber and that emits UV-C ultraviolet light including light having a wavelength band of 254 nm; a blower that forms a flow of air flowing into the sterilization chamber via an air inflow port and flowing to outside of the sterilization chamber via an air outflow port; a projection part that is provided so as to project from an inner wall surface of the sterilization chamber and that splits the flow of the air flowing in from outside of the sterilization chamber via the air inflow port into a first airflow flowing to outside of the sterilization chamber via the air outflow port and a second airflow heading toward the inside of the sterilization chamber; and a direction change part that is provided so as to project from an inner wall surface of the sterilization chamber and that changes the direction of the second airflow split by the projection part to the direction of the annular light source. The present invention is configured such that the first airflow and the second airflow are directly irradiated by the UV-C ultraviolet light emitted from the annular light source.

TAKAHASHI KUNIAKI (JP)

PCT/JP2023/016882

November 30, 2023

April 28, 2023

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HOLONIX INT CO LTD (JP)
NANATSUBAKI INC (JP)
DAINICHI IND CO LTD (JP)

A61L9/00; A61L9/014; A61L9/20; F24F8/158; F24F8/22; F24F8/80

JP2011062639A	2011-03-31
JP2003262369A	2003-09-19
JP2009248031A	2009-10-29
JP2012042160A	2012-03-01
JP2012042139A	2012-03-01
JP2022071336A	2022-05-16
JP2022071316A	2022-05-16

YOSHIDA, Yoshiharu (JP)

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