Nowadays there is an amplified interest in maintaining suitable Indoor Air Quality (IAQ). Besides a wide range of available interventions, air cleaners are considered a valuable tool since based on inexpensive and easily implementing technologies to improve IAQ. The purpose of this work is to combine the TiO2-photocatalysis with the electrostatic and adsorptive processes, in order to improve efficiency and selectivity. A TiO2-photocatalytic oxidation combined with an electrostatic filter has been studied. Nitrogen oxide reduction and degradation of many Volatile Organic Compounds over different catalyst support were monitored jointly with CO and CO2 production. The choice of materials with diversified adsorptive characteristics plays an important role in the observed efficiency and selectivity
