Question: how to use activated charcoal to remove odors?
Answer: Hang the sachets close to the problem areas or tuck them inside trash cans, school gym lockers, tennis shoes or other stinky spots. For refrigerator smells, you can place the charcoal in a shallow bowl, if desired, rather than making a sachet. Charcoal is safe, so feel free to use several sachets for very strong odors.