InPhoCat designed several types of the universal and flexible photocatalytic filters, which can be used in various devices. Their heart is a photocatalytic cartridge: a photoactive coating deposited on properly precleaned using corona treatment technique, various supporting materials (i.e. fiber, foils, metal, plastic) and equipped with a source of UV-light. This system can be used to purify air in various environments. The system is more effective than typical UV lamp. Why? Because the photocatalytic activity of titanium dioxide leads to a complete oxidation of remaining organic matter. The combination of photocatalysis of TiO2 with a activity of another compounds developed by InPhoCat has an excellent effect on elimination of microbiological and organic air pollutant.