Environmental protection in the laboratory is essential for health. The Odor Eliminator is all natural, odorless, non-toxic volcanic crystals with millions of surfaces and channels containing a negative charge. The Odor Eliminators act like a magnet does with metal; they attract and hold all odors to keep the air clean and smelling fresh. To use simply place the net bag in any area that an odor exists, in 8 to 12 hours all odors are gone (2 lbs. bags are effective in a room up to 600 square feet. After 10 months place the mesh bag in the sunlight for 6 hours, this procedure recharges The Gonzo Odor Eliminator making it a wonderful odor-controlling tool that can be used over and over.