Case Control Study
Copyright ©The Author(s) 2024.
World J Clin Cases. Oct 6, 2024; 12(28): 6173-6179
Published online Oct 6, 2024. doi: 10.12998/wjcc.v12.i28.6173
Table 3 Number of colonies at the exhaust port of the suction unit and on the surface of the filter for groups A and B, mean ± SD
Suction device exhaust port colony number (CFU/m3)
Colony count on the surface of the filter (CFU/m3)
Graphene attraction
Convention attraction
Graphene coating
Regular filter
2.62 ± 11.7283.86 ± 52.130.055 ± 0.1620.06 ± 7.06
Min-value00011
Max-value52.41209.640.733
P value0.0000.000