Put a few drops of essential oil (your favorite) on a cotton ball. Put the cotton ball in your vacuum
Do you have a dog or cat? Use Geranium oil as it will help eliminate the pet odor.
Have you been cooking? Are there various cooking odors in the air. Place a pot of purified water on the stove and add essential oils. My favorites are the citrus oils as they are so fresh but in the Fall Cinnamon and cloves is a great combination to dispel cooking odors.