If a room smells funny or has a strong odor, don't reach for scented candles, room sprays or plug-in air fresheners. Most fragrance products for rooms contain artificial scents and chemical phthalates that can be unhealthy to breathe in over time. The best smell is no smell at all, so try to find the source of the odor and remove it. Products like steam mops with nozzle attachments can help blast away dirt, grime and other debris and rid the room of any smells. If the room has a damp smell, try filling up a small bucket with rock salt (the stuff to de-ice driveways) and place it inside a larger bucket. It will draw in moisture over time and dehumidify the space naturally.