Microbiological quality of hospital indoor air. Determinant factors for microbial concentration in air of operating theatres

Foregoing research presents results of total number of bacteria and fungi assays carried out in air of operating theatres before, during and directly after planned surgical procedure. Basing on the results obtained in winter and summer the assessment of bacteria and fungi concentration in atmospheric air impact on microbial quality of air inside of operating theatre was elaborated. Investigation of the reason of high concentration of bacteria in air inside of operating rooms was conducted simultaneously. Presented results of microbial air purity collected from atmospheric air in parallel with indoor air demonstrated that air filters applied in air-conditioning system worked correctly and bacterial contamination of air had different reasons.