using petroleum gauze as chest seal – what size?

[admin]

If I was going to use petroleum gauze instead of chest seals in an IFAK (to cut down on cost), what size would you recommend? 4x4in? 6×6? I have no idea how big an exit wound would be. I know I could use more than one but it’d be easier just to get the right size in the first place and I don’t want to carry unnecessarily large dressings.

[Author]

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