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