Which of the following management measures is used to minimize the spread of infection in...

Regular inspection and maintenance of air-filtration systems is the strongest infection-risk management measure among the available options. Filtration is effective only when filters have the appropriate efficiency, are installed without bypass, remain within acceptable pressure-drop limits, and are replaced according to operating conditions. Poorly maintained filters can lose effectiveness, increase fan energy, or allow contaminated air to bypass the filtration media. Natural ventilation in maintenance areas is not a comprehensive infection-control strategy and may introduce untreated outdoor contaminants or disrupt required pressure relationships. Humidity control can contribute to occupant health and pathogen management, but Option B restricts its purpose to comfort and safety rather than infection-risk control. Routine filtration-system checks therefore provide the clearest operational strategy for reducing the transmission of airborne contaminants.

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