Decrease in spectral irradiance according to humidification levels
| Irradiance (µW/cm2/nm) (percentage decrease) | |||
|---|---|---|---|
| Levels of humidification (%) | Daylight fluorescent lamps phototherapy | Light emitting diode phototherapy | Halogen phototherapy |
| 60–70 | 3.0 (0 %) | 11.2 (0%) | 10.3 (0%) |
| 80 | 3.0 (0%) | 10.1 (10%) | 7.3 (29%) |
| ≥90 | 3.0 (0%) | 9.5 (15%) | 5.7 (45%) |