Skip to main content

Advertisement

Table 2 Live tests results with the large units

From: Comparing and optimizing ultraviolet germicidal irradiation systems use for patient room terminal disinfection: an exploratory study using radiometry and commercial test cards

Area Power reading (mW/cm2) Tru-D Center 1 h runtime Energy estimation (mJ) Tru-D Center 1 h runtime Dose Verify ™ Result Sum of Power readings (mW/cm2) Enlight 3 spots X 5 min Energy estimation (mJ) Enlight 3 spots X 5 min Dose Verify ™ Result
BR faucet 0 0 No change 0.021 6.30 No change
Flush handle 0 0 MRSA range 0.007 2.10 No change
HH station 0.257 925 C. diff range 0.829 249 C. diff range
Keyboard 0.0628 226 C. diff range 0.9654 289 C. diff range
Heart monitor 0.319 1148 C. diff range 0.1875 56 C. diff range
Sphygmo dial 0.350 1260 C. diff range 0.336 101 C. diff range
Crib 0.243 875 C. diff range 0.3125 94 C. diff range
Under table 0 0 MRSA range 0.429 129 C. diff range
IV pump 0.684 2462 C. diff range 0.614 184 C. diff range
Floor, corner 0.063 227 MRSA range 0.061 18 No change
% of areas in range No change 30% 10% No change 20% 30%
MRSA or C. diff 70% 90% MRSA or C. diff 80% 70%
MRSA alone 0% 30% MRSA alone 10% 0%
C. diff 70% 60% C. diff 70% 70%
  1. BR bathroom, HH hand hygiene, Sphygmo sphygmomanometer, C. diff C. difficile. The MRSA lethal energy dose is 12 mJ. The C. difficile lethal energy dose is 38.5 mJ