UV-C radiation is light at a wavelength of
between 280 and 100nm. The wavelength that is
primarily responsible for destroying
micro-organisms is 253.7nm. This has the
greatest effect on the genetic make-up of the
micro-organism's nucleus. The UV-C emitters
developed by BARO are designed to emit light on
a spectral line of exactly 253.7 nm, whilst at
the same time preventing the unwanted formation
of ozone, which occurs in other units. The
desired effect is achieved by using low-pressure
mercury vapour lamps. Furthermore, special glass
is used which prevents the emission of
wavelengths below 200nm that are responsible for
the formation of irritant ozone gas. Radiation
traps in the system casings ensure that no
radiation can escape outside. This means that
UV-C radiation can be used without any health
risk to people or impairment of food products.
