Spirometric values (l) before and after exposure to enzymes
| Enzyme | Spirometry | Baseline | After challenge | % Change |
| Amylase | FVC | 4.50 (93) | 4.53 (93) | 0 |
| FEV1 | 3.17 (80) | 3.08 (78) | −3 | |
| β-glucanase | FVC | 4.70 (97) | 3.85 (79) | −18 |
| FEV1 | 3.41 (86) | 2.53 (64) | −26 | |
| Phytase | FVC | 4.54 (94) | 4.02 (83) | −11 |
| FEV1 | 3.92 (99) | 2.82 (71) | −28 | |
Predicted FVC 4.85l, predicted FEV1 3.96l, percentage of predicted values in parentheses.