Background: The peak expiratory flow (PEF) test is a crucial tool for assessing larger airway functions, particularly in individuals exposed to occupational hazards. This study aims to compare PEF values between animal workers (poultry and dairy farm workers) who are regularly exposed to animal allergens and other respiratory irritants and normal workers who do not have such exposures.
Methods: A cohort of animal workers from poultry and dairy farms were evaluated alongside a control group of normal workers without known respiratory hazards.