Does your dryer take longer to get clothes dry than it used to? Over time, lint and other debris from laundry builds up in the vent air path and can constrict air-flow by 10-20% - making the dryer work harder and longer for the same result. And how about the fridge - is it running more-frequently or does the exterior feel warm to the touch? In the refrigeration process, the condenser pump pushes refrigerant through a network of coils designed to dissipate heat drawn from cooled air. A thick coat of dust on the coils acts like a fur coat, reducing cooling efficiency and requiring more energy to maintain the same temperature. This brush is the key to a simple and quick cleaning routine you perform every-other month or so that pays big dividends - and your dryer and refrigerator will thank you.