Composite coatings based on nanostructures MeO₂/CNPs/CuO (Me = Ce, Ti:Y) and CNPs/CuO, exhibiting pronounced bactericidal and anti-allergenic properties, have been developed. The coatings were synthesized via electrophoretic deposition on the surface of polypropylene fiber felt. According to transmission electron microscopy data, the synthesized coatings consist of carbon nanoparticles decorated with CuO. The MeO₂/CNPs/CuO (Me = Ce, Ti:Y) structures incorporate CeO₂ nanoparticles or yttrium-doped TiO₂ nanoparticles. The size distribution of CeO₂ nanoparticles ranges from 10 nm to 40 nm, with an average size of 20 nm, while that of TiO₂:Y nanoparticles ranges from 15 nm to 45 nm, with an average size of 25 nm. The coatings possess a porous structure with pore sizes ranging from 40 nm to 500 nm and an average pore size of 100 nm. The composite coatings based on nanostructures MeO₂/CNPs/CuO (Me = Ce, Ti:Y) and CNPs/CuO were tested for bactericidal and anti-allergenic properties. It was demonstrated that the coatings exhibit significant bactericidal activity against S. aureus and S. epidermidis bacteria. Additionally, the structure of the Taraxacum officinale allergen undergoes substantial degradation on the surface of the synthesized composite coatings. The obtained biomedical materials can be used for manufacturing air filters in air purification and conditioning systems to effectively eliminate microbial pathogens and the most common airborne allergens.