Metal salts incorporated in the textiles have a catalytic effect. Odour molecules and air pollutants are broken up in contact with our air fabrics and converted to CO2 and water that do not present any danger to the health of the user. Nevertheless, the catalytic effect of air fabrics must not be confused with absorption - the effect of standard textile fresheners - since here harmful substances are merely enclosed by the active agent, and not broken down. The air-purifying effect prevails even after frequent washing and the ambient air is significantly and permanently improved.