Eva-Dry E150 Moisture Eliminator Pouch or Dehumidifier uses micro absorbing silica gel technology to remove excess moisture from damp and humid environments. Perfect for small enclosed areas, The moisture eliminator pouch will last up to 45 days. Each package includes two 8-ounce pouches. You can use the dehumidifier pouch in suitcases, shoe boxes, autos, golf bags, purses, storage containers, camera cases, instrument cases, gun bags, duffel bags, safes, or any smaller spaces that can benefit from moisture removal. It is one of the best dehumidifiers available in the market.