Improving indoor air quality with This Old House plumbing and heating expert Richard Trethewey. (See below for a shopping list and tools.)\r \r Click here to SUBSCRIBE to the official This Old House YouTube channel: \r \r How to Choose The Right Furnace Air Filter: \r \r How to Install a Portable Air Conditioner: \r \r How to Stop Cold Air Leaks in Winter: \r \r Shopping List for Installing an Electronic Air Cleaner:\r - electronic air cleaner\r - self-adhesive gasket\r - sheet metal duct and flexible adapter\r - foil-faced duct tape\r \r Tools for Installing an Electronic Air Cleaner:\r - drill/driver\r \r Follow This Old House: \r Facebook: \r Twitter: \r Pinterest: \r G+: \r Instagram: \r Tumblr: