I searched high and low but all I saw are China made imitations of this product. Right now your only choice if you want to sell authentic Dyson fans is to go directly to Dyson and negotiate to be an accredited dealer. I know this would cost you. But there are obvious perks in dealing with authentic products, one of them is warranty servicing, availability of parts and of course avoiding costly lawsuits (this product is protected by patent and trademark laws).
Here is the contact information of Dyson Inc.
600 W. ChicagoSuite 275 ChicagoIllinois60654
1-866-693-9766 begin_of_the_skype_highlighting 1-866-693-9766 email@example.com