About the Authors

Hidekazu Nishimura


Affiliation Virus Research Center, Clinical Research Division, Sendai Medical Center, Sendai, Japan

Soichiro Sakata

Affiliation Takasago Thermal Engineering. Co., Ltd., Tokyo, Japan

Akikazu Kaga

Affiliation Graduate School of Engineering, Osaka University, Osaka, Japan

Competing Interests

Among authors, HN and AK have no competing interests as have declared in the Competing Interest section. SS is an employee of a company; Takasago Thermal Engineering Co., Ltd., Tokyo, as was pointed out. He works mainly for basics of airflow which does not link directly to the patent or products development, and this does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HN SS. Performed the experiments: HN SS. Analyzed the data: HN SS AK. Contributed reagents/materials/analysis tools: SS AK. Wrote the paper: HN.