This refillable room freshener is a nonelectric moisture absorber to protect against damage caused by excess moisture. Absorbs musty odors caused by stagnant air. Nontoxic, septic safe, and friendly to the environment. Ideal for smoke, trash, paint, pets, diaper pails, and food odors. Refer to Model No. FG30K (SKU 606316) and FG30LV (SKU 600527) for 42 oz. refill.