Purpose The purpose of this study was to investigate the comparison of body changes (body temperature, grip power, forced vital capacity) according to pre-post comparative the anion clothes of young adults. Methods Forty young adults participated in this study. Each measurement was measuring 3 times. First is no wearing anion clothes, second measurement were after 10 minutes of wearing anion clothes and third measurement were after 30 minutes of wearing anion clothes. The body temperature measured using the infrared thermography. The area where the body temperature was measured were the neck, elbow, hand and calf. The grip force measured using the dynamometer. And the FVC measured using the Spirometry. All human body changes were analyzed by paired t-test. Significance probability of all statistics were set as p<.05. Results As shown in the results of measuring the grip power of the hand, there were significant difference between first measurement and third measurement, second measurement and third measurement. Discussion The FVC has significant difference all the measurement. And the body temperature were significant difference between first measurement and second measurement. There is no significant difference between first measurement and third measurement at neck because plateau phenomenon to maintain neck temperature. Anion has oxygen free radical so young adults clothing on anion has increased grip power, FVC and blood circulation also has improved.