The EIO vacuum cleaners are excellent machines.They are canister vacuums made in germany and have about ten percent of the market there.They have three models that vary by attachments and filter ability,including double and triple HEPA filtration systems.This means they have two or three HEPA filters on the machine,not three times better than HEPA.They are just coming into the north american marketplace,you can check them out at <a href="http://www.eio-vacuum.com">http://www.eio-vacuum.com</a> .