Exposure to various substances can also worsen pre-existing asthma. People who work in isocyanate manufacturing, who use latex gloves, or who work in an indoor office environment are at higher risk for occupational asthma than the average US worker.
Prolonged exposure to different substances can aggravate existing asthma. People who labor in isocyanate production, wear latex gloves, or work in a closed office setting are more susceptible to occupational asthma than the typical American employee.