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Table 1 Differences among mean microbial counts registered for air samples before (T1) and after (T2) sanitization with BATT2 (n. of samples: 10 for each mean value).

From: Automated cleaning of fan coil units with a natural detergent-disinfectant product

Room

Mean value T1± D.S. (CFU/m3)

Mean value T2± D.S. (CFU/m3)

Variation (%)

Student's t

p

A - TMC 37°C

25,7 ± 19,4

6,9 ± 8,4

-73.2

2,80

0,0116

B - TMC 37°C

15,7 ± 10,5

7,5 ± 7,5

-52.2

2,010

0,0596

C - TMC 37°C

13,3 ± 12,4

4,1 ± 3,7

-69.2

2,25

0,0369

A - TMC 22°C

124,3 ± 91,4

25,1 ± 13,9

-79.8

3,39

0,0032

B - TMC 22°C

78,7 ± 67,7

26,9 ± 27,6

-65.8

2,24

0,0379

C - TMC 22°C

46,3 ± 38,3

17,6 ± 12,5

-62

2,25

0,0369