Craniofacial Dimensions as Determinants of the Fitted Performance of Common Face Masks (FACEFIT 2.0)

Description

This study examines the role of craniofacial dimensions and self-evaluation thereof in the protection afforded by masks commonly worn by the public as protection against aerosol contaminants. The effectiveness of instructions for self-evaluation of craniofacial dimensions will be tested against standard digital and manual craniometric methods. Approximately 500 (18-70 year old) subjects. After consenting to participate in the study, subjects will use a short self-assessment questionnaire to measure their craniofacial dimensions, and have their face measured using standard anthropological techniques and a 3D camera. They will then enter a chamber containing an atmosphere of aerosolized salt particles where the fitted filtering efficiency of 2 types of face masks will be measured briefly. Participation time is approximately 60 minutes.

Conditions

Healthy

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Study Overview

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Study Details

Study overview

This study examines the role of craniofacial dimensions and self-evaluation thereof in the protection afforded by masks commonly worn by the public as protection against aerosol contaminants. The effectiveness of instructions for self-evaluation of craniofacial dimensions will be tested against standard digital and manual craniometric methods. Approximately 500 (18-70 year old) subjects. After consenting to participate in the study, subjects will use a short self-assessment questionnaire to measure their craniofacial dimensions, and have their face measured using standard anthropological techniques and a 3D camera. They will then enter a chamber containing an atmosphere of aerosolized salt particles where the fitted filtering efficiency of 2 types of face masks will be measured briefly. Participation time is approximately 60 minutes.

Craniofacial Dimensions as Determinants of the Fitted Performance of Common Face Masks (FACEFIT 2.0)

Craniofacial Dimensions as Determinants of the Fitted Performance of Common Face Masks (FACEFIT 2.0)

Condition
Healthy
Intervention / Treatment

-

Contacts and Locations

Chapel Hill

U.S. Environmental Protection Agency Human Studies Facility, Chapel Hill, North Carolina, United States, 27514

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • 1. Age 18-70 years old healthy of any gender and ethnicity.
  • 2. Subjects must be ambulatory and tolerate enclosed spaces.
  • 3. Subjects must report being in good health
  • 4. Individuals with a BMI (kg/m2) that is greater than 16.0 and less than 50.0
  • 1. Persons who are pregnant, attempting to become pregnant or breastfeeding
  • 2. Persons who are unable to read English or Spanish well enough to follow written instructions or a questionnaire.
  • 3. Persons who have facial hair.
  • 4. Individuals who have had an acute respiratory illness within 4 weeks.
  • 5. Individuals who have active allergies.
  • 6. Those who are not feeling well.
  • 7. Anyone who is unable to walk unassisted, stand or sit still for 15 minutes at a time.
  • 8. Anyone who suffered a heart attack, cardiac arrest or stroke in the past 6 months.
  • 9. Anyone who has been hospitalized overnight or sought urgent medical care in the last 30 days.
  • 10. Anyone who has an unspecified illness, which in the judgment of the medical staff, might increase the risk associated with this study will be a basis for exclusion.
  • 11. Those who are pregnant, attempting to become pregnant or breastfeeding.

Ages Eligible for Study

18 Years to 70 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

University of North Carolina, Chapel Hill,

James Samet, PhD, PRINCIPAL_INVESTIGATOR, U.S. Environmental Protection Agency

Study Record Dates

2026-05-30