All current Festool air sanders have an IAS 2 connection only. That means you can not connect a standard air hose directly.
Festool does sell two adapters to make the connection with a standard hose.
1 - The option without dust extraction:
http://www.festool.co.uk/Products/Accessories/Pages/Detail.aspx?pid=488311&name=Air-tool-connections-AD-1-4-IAS-2
Problem for US users is, I can't find it on the USA site so I'm not sure it's sold there. Contact Festool directly to find out.
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2 - Option with dust extraction:
http://www.festoolusa.com/products/sanders/air-sander-accessories/ias-2-adapter-454757.html
With this adapter you can connect the IAS 2 hose to a standard air hose and any 2 inch dust extractor. Note that you also need to buy an IAS 2 hose for this to work.
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