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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