The easy-to-use, disk-shaped EZ-Twist™ is a deodorizing device that utilizes a special non-woven fiber element to release an effective neutralizing dry vapor into the air. Passive, simple, dry vapor system. Approximate area of coverage 2000 cubic feet. Use 34-7600 series refills. Requires no electricity or batteries it relies on gentle air movement passing over the neutralizing element to constantly refresh the air. Eliminates the potential for dangerous spills and wet spots on floors, and contains no petroleum distillates, inert ingredients, or ozone-depleting chemicals.