Gyms with poor air circulation often get smelly from sweaty clothing, shoes and gear, bacteria, fungus, mold and mildew. The Smelleze® Gym Deodorizer Pouch was specially developed to eliminate stale and musty gym and locker room odors on contact without masking them with fragrances. Smelleze® will keep gyms smelling clean and create a healthy workout environment.For a breath of fresh air, simply place the reusable Smelleze® pouches in your gym, locker rooms and return air ducts and smell the difference. To rejuvenate periodically, simply heat in a microwave 3-4 minutes or place in direct sunlight for a day and reuse. Replace when rejuvenation does not help. Smelleze® can work for years so it is very cost effective.Smelleze® is non-toxic, safe, reusable, recyclable, natural, odorless, non-flammable and non-caustic. Smelleze® is an ideal environmentally friendly solution for eliminating stinky gym room odors without adding pollutants to the air you breathe. It does not contain VOCs, harmful or ozone depleting chemicals and is especially beneficial for those suffering from allergies and chemical sensitivity. No fossil fuels are used in the production of Smelleze® odor control media.