Tip: Carpet deodorizing with essential oils Pour one 16-ounce box of baking soda into a mixing bowl. Add 20 drops of lavender essential oil and 10 drops each of lemon and tea tree essential oil to the bowl. Mix well. Sprinkle mixture on areas of carpet that need deodorizing and allow to sit for 10 to 20 minutes. Vacuum mixture. Save any unused mixture in a glass jar for later use.