Dust-free bleaching powder may not prevent symptoms in hairdressers with bleaching-associated rhinitis
Objective: Hairdressers have an increased risk for airway symptoms especially when using hairbleaching powder containing persulfate. To minimize exposure, dust-free bleaching powder (DFP) has been made available. We studied the effects of regular powder (RP) or DFP on the airway symptoms of hairdressers with hair-bleaching associated rhinitis. Methods: Twelve hairdressers each performed three hair