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<p>[QUOTE=&quot;GDJMSP, post: 3000768, member: 112&quot;]Good for what ? Do ziplocks help reduce the airflow that can get to coins ? Yes they do, but - plastic is air permeable - so no matter what you put in the ziplocks air still goes right through the plastic - in both directions, meaning into and out of.</p><p><br /></p><p>So if you will ziplocks stop bad stuff from getting to your coins ? No they will not. They will help slow it down from getting to them but they will not stop it.</p><p><br /></p><p>Now it&#039;s pretty easy to test this for yourself right at home. Take anything that has a strong scent, a slice of onion maybe, Oreo cookies, virtually anything with a strong scent will work. Put it in the ziplock, lay it down overnight. The next day pick up the ziplock, <u>do not open it</u>,&nbsp; and smell it from the outside. You will be able to smell whatever is in the ziplock - thus proving that they are air permeable. If they were not air permeable you would not be able to smell anything at all. But you will, I guarantee it.[/QUOTE]</p><p><br /></p>

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