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filtered out, with almost all resulting UV that reaches the
Earth’s surface consisting of about 95% UV-A and 5% UV-B.
No measurable amount of UV-C is observed on earth
originating from the sun. Instead, all sources of UV-C occur
from manmade processes. The effectiveness of UV-C
disinfection depends on the total energy applied to the
microbiological threat, a result of distance from the UV-C
source and exposure time.
UV-C air sterilisation is a growing use of UV-C, but requires
careful calculation to maintain efficacy as air flow and volume
affect exposure time. SteriWhite Air Air Q, which is European
University-tested to 99.99% efficacy, meets local certification
requirements and codes in Australia.
UV-C lamps emit a bluish light; this is not UV light, but a
result of the mercury used which also emits light at the low
end of the visible light spectrum. Most UV lamps typically have
a lifespan of 8–10,000 hours. SteriWhite Air’s 16,000-hour
lamp life means that an industry leading sterilisation period
exists without the need for ongoing maintenance and lamp
replacements.
The SteriWhite Air UVC air sterilisation device does not
require filter changes and has few moving parts, resulting in
minimal downtime for ongoing service and maintenance.
HUMAN SAFETY
Care is required in design to minimise ‘leakage’ of UV-C, as
it is hazardous to humans. ESW has further modified the
already robust SteriWhite Air to ensure there is no observable
quantity of UV-C leakage, even under rigorous Australian
independent testing. Hazards of UV-C often mean servicing
and maintenance, including lamp changes that must be
conducted by a trained technician. SteriWhite Air lamps are
safe and can easily be changed by anyone following the proper
instructions.
UV-C sterilisation does not require handling, transportation,
or storage of hazardous or corrosive chemicals, nor does it
leave or create chemical residue.
UV-C sterilisation can be much more sustainable than other
air-treatment methods due to low parts turnover, lack of
chemical use and low power consumption.
The UV lamps via the inbuilt timer can operate for a typical
eight-hour workday duration and for five days a week,
providing a potential lamp life of up to 10 years. If a 24/7 lamp
operation is necessary, the life of the lamps can be around two
years.
FAQS
Q: Do I have to vacate the room while the air is being
disinfected?
A: No. The SteriWhite Air Air Q was developed specifically for
use in occupied rooms. Testing conducted to the highest
Australian standards by independent labs confirmed the
device does not leak observable quantities of UV-C light and
can be operated 24/7 in occupied spaces safely.
The unit produces neither ozone nor other harmful
substances and is designed with safe housing and is free of
chemicals.