Brenden:
You could use polypro breather bags with a tyvek strip, that will keep the costs down but also give the performance you are looking for. If you want to try those I can help you.

Thanks

Tony Shouga

Humidity Control can get expensive that is for sure. There are several ways to add humidity to the facility, but needs to be weighed with you existing air handling equipment. You are welcome to send us your layouts and particular requested to designbuild@digitalaircontrol.com

Thanks!

Never heard of these guys but you might check them out. http://www.smartfog.com/cleanrooms.html

I think you would get a great response asking over here:
http://www.eng-tips.com/viewthread.cfm?qid=43124&page=173

Hi Maarten, We get around this problem by vacuum packaging components in order to minimise the effects of pressure difference at altitude. For small components we utilise vacuum chamber packaging machines (typically sealing anywhere between 20mbar and 500mbar depending on the size/shape of the component. For larger components/assemblies that do not fit in the vacuum [...]

Hi Maarten, We get around this problem by vacuum packaging components in order to minimise the effects of pressure difference at altitude. For small components we utilise vacuum chamber packaging machines (typically sealing anywhere between 20mbar and 500mbar depending on the size/shape of the component. For larger components/assemblies that do not fit in the vacuum [...]

Speaking of tribo-charging, if you ever have to remove a label (almost certainly to be of an insulating material) from a surface, make certain that it’s done in an area where ESD effects are not going to be an issue. The removal process will generate large amounts of static electricity.