<human>: What are some of the best ways to get rid of a bad smell in a refrigerator?
<bot>: 
1. Clean the shelves and drawers inside the fridge as often as possible.
2. Open the door regularly to let air circulate throughout the fridge.
3. Place an open container of baking soda at the back of the fridge, where it will absorb odors from food items.
4. Replace the air filter every six months or so with one that has been cleaned with baking soda.
5. Use activated charcoal filters to help reduce smells.