Removing Curry Odor from a House?

I run a bed and breakfast and the rooms have full kitchens, bathrooms, and full housekeeping suites. I recently agreed to taking guests who had sold their house and are waiting to take possession of their new home just down the road. They have a huge dog which I was hesitant to agree to, but it was a steady booking for five weeks.

It was a horrible mistake as the dog hair is everywhere and the house is now flea infested and I am allergic to fleas. I know how to handle that, lots of money spent on the cats and still can't get that problem under control (until the dog is gone in another week).

However, they were cooking with curry, lots of it. And the house reeks now and especially the spare bedroom which is connected to their furnace/AC system. I have no idea as to the smell in their unit as I only go in once a week to thoroughly clean. However the one bedroom has an absolutely horrendous smell and I have a fan in the window full time and still the smell will not go away.

I have wedding gowns and bridesmaid gowns stored in that room as it was the safest place to store them, not anymore. How do I get rid of the smell? It has only been there for two weeks, but it is driving me nuts and I am worried about what will happen when the new guests arrive two days after this group leaves.

By Judy A. from Paris, Ontario