Title:
PROTECTION CLOSED SPACE SYSTEM
Document Type and Number:
Japanese Patent JP2022125876
Kind Code:
A
Abstract:
To provide a protection closed space system that reduces an infection risk.SOLUTION: A protection closed space system 100 comprises: a closed space 101 that constitutes a closed airflow system with no gas exchange as a mass flow between its external environment and its inside and has a gas exchange membrane 310, at at least part of a boundary surface between the external environment and the inside, which blocks floating dust 2, floating particles 4, and floating fungi 6 and allows gas molecule to pass; an opening through which a user of the system in the closed space 101 inhales gas inside the closed space 101; and a purification device 102 that with respect to dust fine particle number density, returns the inhaled gas to the inside of the closed space 101 while alternatingly changing a direction of an air flow passing through a purification unit 200.SELECTED DRAWING: Figure 2
Inventors:
ISHIBASHI AKIRA
Application Number:
JP2021023700A
Publication Date:
August 29, 2022
Filing Date:
February 17, 2021
Export Citation:
Assignee:
UNIV HOKKAIDO
International Classes:
A62B31/00; A62B17/00; F24F8/108
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Shunichi Takahashi
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