How Face Shapes Are Changing and Why Your Mask Might Not Fit

Study Reveals Significant Changes in Facial Dimensions

Recent Findings:

• Facial Growth: People in Chile are developing larger faces, particularly men.
• Mask Fit Concerns: Older mask designs may no longer fit well due to these changes.

Methodology: Comparing Past and Present Data

• Data Sets:
• 2013: Manual measurements.
• 2024: 3D scans.
• Measurements: 11 facial dimensions, following international standards.

Key Discoveries

• Facial Enlargement: Men's faces have grown significantly.
• Mask Fit Panels:
• Best Fit: NIOSH/ISO panel.
• Poor Fit: LANL full-facepiece panel, especially for recent male participants.
• Gender Differences: Men and women have distinct facial shapes, affecting mask fit.

Implications and Recommendations

• Design Updates: Mask designs need to be revised to accommodate current facial dimensions.
• Global Impact: Countries importing masks should ensure they fit their populations.
• Safety Risks: Poorly fitting masks could endanger workers.
• Solution: Update mask designs based on current data to enhance safety and comfort.