Scans_Daily

Actually, to be more specific, it's less than that; it's the same thing you do when you're using a submarine's escape trunk. You don't *hold* your breath, and allow the pressure differential between your lungs and the outside to empty them continuously until they match. Do anything to try and hold it back, and they burst like a balloon, but if you just let the air flow out naturally, you won't suffer any direct depressurization damage (except for some of the capillaries in your eyes hemorrhaging, which is minor and can happen in bad car crashes, for example, and possibly ruptured eardrums).

Of course, there's the little issue of then only having 30 seconds of useful consciousness left, and that irreversible brain damage would start kicking in after about three minutes, but that's anoxia damage, not decompression damage...