If you've ever had household moisture or odor issues, you know the value of pure, clean, dry indoor air. And that's exactly what Arm & Hammer moisture absorber & odor eliminators deliver. They combine the power of two natural ingredients-baking soda and calcium chloride crystals-to neutralize tough odors, eliminate excess moisture and keep your home smelling fresh. Arm & Hammer moisture absorber & odor eliminators are the safe, natural, affordable way to freshen air and remove odors. They are disposable and come in two easy-to-use packages: a tub and a hanging bag. Arm & Hammer has been a trusted choice of homeowners for more than 165 years.