How far is Messe fair ground and public transport from hotel
The local train station is right outside the hotel... Dusseldorf main train station is 3 stops away from where you can access both the Dusseldorf Messe (should be very close by) and Koln Messe (30 to 40 mins by train)...
As others have stated there are station entrances within 25 yards of walking out of the hotel entrance
Not sure about the fair location but the metro station is directly across the street.
Get an answer from Breidenbacher Hof, a Capella Hotel staff and past guests.