Unless you’re trained in how to apply a thoracic cavity wound seal, vented or non-vented, and know how to manage developing pneumothorax you’re deluding yourself about the usefulness of carrying such things. Tourniquets are similar, not much use if you don’t know how to apply correctly under duress. Try applying one to yourself one handed with your offhand for example, see how that goes. For that matter try doing that with an ‘Israeli bandage’. You can carry the flash as gear but basic dressings, bandages, tape etc still do the job plus training and practice. I’m reasonably experienced in dealing with medical trauma and tend to keep it simple what I carry hunting. Just my 2c.
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