The dynamics of filtration efficiency during consecutive solid-liquid and liquid-solid aerosol filtration was investigated. Presence of solid particles deposited inside a filter affects the efficiency of liquid aerosol filtration on this filter. Similarly, liquid droplets deposited on filtration fibers inside the filter influence the removal efficiency of solid particles. It is caused by the different character of interactions between solid particles in the presence and absence of liquid. In this work these effects were identified in experimental results and their phenomenological explanation was presented. (C) 2016 Elsevier B.V. All rights reserved.