BACKGROUND Persulfate salts have been identified as a cause of occupational asthma (OA). The aim of the present study was to describe the clinical characteristics, diagnostic testing results, and follow-up of eight patients with OA that was triggered by these chemical compounds. METHODS Eight patients with OA due to exposure to persulfate salts were studied. Immunologic, lung function, and sp...

Many different causative agents have been ascribed to occupational asthma (OA). Persulfate salts are low molecular weight chemical compounds widely used in different manufacturing processes, particularly in the cosmetics industry. Persulfate-induced asthma may represent 4% of all OA cases, and although the first cases due to persulfate salts were described approximately 30 years ago, the preval...