Hypersensitivity pneumonitis

Etiology

• Farmer's lung (moldy hay)
• Humidifier lung (contaminated humidifier, heating, or air conditioning)
• Bird fancier's lung (pigeon-breeder's disease)
• Bagassosis (moldy sugar cane fiber)
• Sequoiosis (moldy redwood sawdust)
• Maple bark stripper's disease
• Mushroom picker's disease (moldy compost)
• Suberosis (moldy cork dust)
• Detergent worker's lung (enzyme additives)