For Odor Free Bed Rooms. In comparison to regular charcoal, bamboo charcoal has ten times more surface area and is four times stronger in its absorption rate. This makes bamboo charcoal the ideal deodorizer and dehumidifier in many places. Ever Bamboo Room Deodorizer and Humidifier keeps bedrooms, bathrooms and pet areas fresh and odor-free. Features and Benefits: Absorbs odors and moisture. Place in bedrooms, bathrooms, pet areas, and large closets (areas up to 70 sq ft). Suggested Use: Deodorizers can last up to one year. Place deodorizers outside under direct sunlight (2-3 hours per side) monthly or weekly for optimal performance. You can place Ever Bamboo Room Deodorizer and Humidifier in bedrooms, bathrooms, pet areas, and large closets. Cautions: Keep the product out of reach of children.