Public awareness of the need to protect the environment deepens and expands to new areas of life, including new technologies used in civil engineering. These technologies include, among others, the technology of photocatalytic concrete products, which are capable of purifying air. The use of this type of technology is closely linked with the campaign for Sustainable Development. The article discusses the photocatalytic properties of titanium dioxide and its use in various industries. The test results of TioCem® CEM II/A-S 42.5 cement and Portland CEM I 42.5 cement based on experiments performed with bars made of standardized mortar are presented.