Asthma is a respiratory disease in which the air passages narrow, making it difficult to breathe. People can develop asthma after exposure to certain substances, known as sensitizers. Exposure to sensitizers can also trigger or worsen a person's existing asthma.
When a worker become sensitized to a material, he or she will experience an asthma attack even if only an extremely small amount of the sensitizer is in the air.
Allergic reactions can result from workplace exposure to common allergens in these areas:
|Outdoor work||Wood dust|
|Painting, insulating, and industrial coating||Isocyanates|
Working with wood and wood products
Western Red Cedar dust