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Related Experiment Videos

Sun protection with hats.

B L Diffey1, J Cheeseman

  • 1Regional Medical Physics Department, Dryburn Hospital, Durham, U.K.

The British Journal of Dermatology
|July 1, 1992
PubMed
Summary
This summary is machine-generated.

Wide-brimmed hats offer the best sun protection for the face and cheeks. Smaller brim hats like baseball caps or flat caps provide minimal protection against harmful ultraviolet (UV) radiation.

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Area of Science:

  • Dermatology
  • Photoprotection
  • Headwear Efficacy

Background:

  • Sun exposure poses risks to skin health, particularly on the head and face.
  • Photoprotective measures are crucial for preventing sun damage.
  • Headwear is a common method for sun protection, but its effectiveness varies.

Purpose of the Study:

  • To quantify the sun protection effectiveness of different hat styles.
  • To assess protection levels at various anatomical sites on the head.
  • To determine the required brim width for adequate ultraviolet (UV) protection.

Main Methods:

  • Utilized model headforms for consistent measurements.
  • Employed ultraviolet-sensitive film badges to quantify UV exposure.
  • Evaluated multiple hat styles with varying brim widths.

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Main Results:

  • Flat caps offered negligible protection except on the vertex and forehead.
  • Baseball caps provided good nose protection but limited facial coverage.
  • Wide brims (greater than 7.5 cm) were essential for significant protection (protection factor > 3) on the nose and cheeks.

Conclusions:

  • Hat brim width is a critical factor in determining sun protection efficacy.
  • Wide-brimmed hats are superior for comprehensive facial UV protection.
  • Recommendations for headwear choice should consider brim size for optimal photoprotection.