Question: is tegaderm a occlusive dressing?
Answer: Semi-Occlusive (Semi-Permeable) Tegaderm™ and Tegaderm™ HP Transparent Film Dressings are made of semi-permeable films. They can be thought of as selective filters—they are occlusive to liquids, bacteria, and viruses;* yet water vapor, oxygen, and carbon dioxide can easily be exchanged.