The aim of this study is to determine the relationship between air velocity, cooling efficiency and decrease of the temperature of the air passing the pad, at a cellulose based evaporative cooling pad and to gain handy information for the persons working on this subject. In the study, cellulose based evaporative cooling pad (CELdek R 7060-15) was handled as material. As for the velocity of air passing through the pad 0.5, 1.0 and 2.0 ms(-1) values were selected. Based on the measurement results, cooling efficiency and provided decrease of the temperature of the air passing the pad, were calculated. As a result of the research, cooling activities calculated between 3 different air velocities were found significant in the statistical sense ( p < 0.01) for the measurement periods except II. measurement periods. As for the temperature decrease, the difference between other measurement periods except II. and III. measurement periods, were also found significant. The highest cooling activity and temperature decreases were reached at 0.5 and 1.0 ms(-1) air velocities. It can be said that according to statistical data, optimal air velocity for the Mediterranean climatic conditions should be between 0.5 and 1.0 ms(-1), among the selected air velocities.