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Objective: The present study developed the oxygen mask design method based on 3D face scanning and applied the proposed method to improve the current MBU-20/P oxygen mask design for better fit to Korean pilots. Background: Adesign method based on 3D scanning data is needed to develop an ergonomic oxygen mask design. Method: The present study developed a 5-step oxygen mask design process based on 3D face scanning: (1) scanning of 3D faces, (2) analysis of mask wearing characteristics, (3) virtual fit testing for the existing mask design, (4) determination of mask design directions, and (5) development of an improved oxygen mask design. Results: The effectiveness of the proposed mask design method was evaluated by a virtual fit test in terms of allowance (1 ~ 8 mm additional allowances), pressure (pressure angle: ≤25˚, pressure distance: 4 ~ 6 mm), and fit (fit angle: ≤20˚; fit distance: 6 ~ 10 mm). Conclusion: The proposed mask design method proposed in the study was found effective to produce an ergonomic oxygen mask design. Application: The mask design method based on 3D face scanning can be applied to various masks or face-wear products used in the industry and our daily life.

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ABSTRACT
1. Introduction
2. Oxygen Mask Design Method based on 3D Face Scanning
3. Case Study: Korean Pilots’ Oxygen Mask
4. Discussion
References

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UCI(KEPA) : I410-ECN-0101-2013-530-001644022