If your shoes have unpleasant smell, please try the tips below to reduce the smell: 1. Air out the items. When you're not using the items, place them in a well-ventilated area with lots of air movement (such as near a fan or an open window) to expose them to air. 2. Leave the baking soda on the items for several hours, then dust or wipe away. 3. Place the items in a paper bag with some charcoal or coffee beans overnight. This treatment will absorb smells and airborne chemical residue.