Figure 1.

Spectroradiometric characterization of the light exposure setup for medium conditioning. (a) Relative irradiance of wavelengths emitted by the standardized light source in the experimental setup (black continuous line), compared with the illumination conditions found in a typical biosafety cabinet (grey dashed line). Note the close overlap in spectral characteristics. (b) Comparison of illumination conditions in a typical biotechnological laboratory environment. Lab corridor with artificial light only (grey dashed line), as well as in a production room at a distance of 1 m (black continuous line) and 4 m (black circles) from a window. All spectra are normalized to the maximum peak height (=100%) in each measurement.