The most effective way to remove the smell of fresh oil-based paint is to absorb the smell by filling bowls with ¼ cup salt, water and a few slices of lemon and placing them strategically throughout the painted area. Small bowls of plain vinegar are effective as well.
Masking paint odor with chemical spray deodorizers is not recommended because it adds additional chemicals to the air. Ventilating the room is a practical way to rid a room of paint odors. By covering vents and closing the doors to the room, fumes can't circulate to other areas of the house. A fan directed towards an open window also helps to dispel unpleasant paint odors.