 I did not like the very cold room I was assigned to I called reception who dispatched a maintenenace staff member who vacuumed the air filter which was totally clogged This did help the air flow to a large extent but did not increase the temperature to a comfortable Are all of your air filters as filthy as this was It is a health issue as you will realise I have not rated the cleanliness of the room as the room itself was all right and the housekeeper should not be held responsibel for the state of the filthy air conditioner 
 I appreciated the dining room and reception staff They were very helpful The concierge was absolutely excellent in dealing with an issue I had with my first room He inspected it and confirmed that it was too cold to be in and arranged to have me stay in a h Hilton room which was warm clean and satisfactory If he had not done this I would have gone to another hotel for the night 