Student Nora Keegan, 13, has been studying decibel levels in hand dryers since she was 9 years old. Her research paper has just been published in Paediatrics & Child Health, Canada's premier peer-reviewed pediatric journal.
https://www.cbc.ca/news/canada/calgary/calgary-student-nora-keegan-hand-dyer-research-decibel-1.5185853