Occupational Asthma is defines as Asthma induced by sensitization to an agent inhaled at work. In Finland occupational asthma caused by protein allergens and reactive chemicals present in the air of work environments is increasing. The annual number of suspected or recognized occupational asthma cases is currently approximately 600. In Finland at 2001, 29%men and women 17% are identified with Occupational Asthma. 174 total cases have been reported. 82 % still with symptoms and 35% with continuous asthma medication, 22% of symptomless persons had impairment in spirometry, 25% were hyper-reactive and 18% had increased PEF variation.
Early diagnosis, elimination of exposure to the responsible agent, and early use of inhaled steroids may play important roles in the prevention of long-term persistence of asthma. Persistent occupational asthma is often associated with substantial disability and consequent impacts on income and quality of life. Current researches on Occupational Asthma are happening at National Asthma Council.