Theorange and his cloves are a great classic that still works so much. Plant cloves in a orange fresh and keep it for a month. For a little variation, use a lemon or grapefruit. Take the opportunity to recycle lemon zest, tangerine, grapefruit andorange and put them in a cotton or linen bag or gauze. Attach the bag to the wall and shake the zests when it does not work.
Sprinkle in a cup and leave for a quarter of an hour. Baking soda will absorb odors. You can also sprinkle it in the trash!
It's a very simple technique that works well. Light a match or two and blow. The sulfur that emerges absorbs odors and deodorizes the room. You will only see fire!