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<p>[QUOTE=&quot;desertgem, post: 1332365, member: 15199&quot;]Canned air is not in my coin tools. The reason is that some companies, actually do use compressed air, which can have some oils from the compressor. The cans usually contain gases that are much easier to compress such as tetrafluroethane, or difluorethane .&nbsp; There are &quot;food grade&quot; compressed air to use in manufacturing milk products and other, which is carefully filtered and are said not to come from oil type compressors. Since compressed air is usually the final product put on a coin surface, I would not trust it. IMO.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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