The trouble with UV light in your biosafety cabinet

Does your biological safety cabinet (BSC) have an ultraviolet (UV) lamp in it? If so, it may not be as effective for sterilization/decontamination purposes as you need it to be.

Ultraviolet radiation is a form of non-ionizing radiation, and biological effects from it vary with wavelength, photon energy, and duration of exposure. The 100-280 nm wavelength band is designated as UV-C, which is used for germicidal purposes.

The sterilization/decontamination activity of UV lights is limited by a number of factors, including:

 

SAFETY ALERT for laser users

The UW was recently notified of a potential hazard for users of laser equipped microscopy equipment manufactured by ZEISS. The hazard identified by the manufacturer is potential exposure to Class IIIb laser light, which can cause serious and permanent visual impairment. All users of laser equipped microscopy equipment should contact EH&S immediately if using or possessing the following equipment: