CO₂ subcutaneous emphysema is one of the complications of laparoscopic surgery using CO₂ gas. During laparoscopic surgery, CO₂ gas can spread to the entire body surface through the subcutaneous tissue layer. Extensive CO₂ subcutaneous emphysema results in hypercarbia and acute respiratory acidosis. Hypercarbia and acidosis can lead to decreased cardiac contractility and arrhythmia. A cloth band, 5 cm in width and 120 cm in length, was made with Velcro tape at both tips, and placed on the patient's xyphoid process level and inframammary fold to prevent CO₂ subcutaneous emphysema. This report describes two successful cases using a chest band to prevent the expansion of CO₂ subcutaneous emphysema.