You should add the essential oil to your spray bottle, and fill it with the hot water. Next, add the baking soda, and shake well.
To be sure that your spray will not leave stains or spots, first spray it on a small area, to test it. Then, you can use it in the kitchen, and in all rooms at home.
This spray will completely remove all bad odors from the room, but at the same time, it will keep flies and other insects at bay.