1. Air quality monitoring using nanosensors 2. Smart nanosensors and methods for detection of nanoparticles and their potential toxicity in air 3. Nanocatalyst-based advanced oxidation processes 4. Nano-photocatalysis in advanced oxidation processes 5. Biotechnological applications of nanomaterials for indoor air treatment 6. Air treatment by absorption on nanoparticles 7. Nanofiltration/nanostructured membranes 8. Immobilization of hybrid nanoparticles in filtration membrane structures 9. Membranes based on carbon nanotubes 10. Antibacterial air filter using nanomaterials 11. Advanced nanomaterials for the adsorption of toxic gases 12. Nano- Metal Organic Frameworks (MOF) for gas adsorption 13. Combined cold plasma treatment and photocatalytic nanomaterials 14. Biological and physicochemical combination processes 15. Biological treatment followed by physical methods (ozonation, photolysis) 16. Future scope