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Roy Spencer, Founder and President of Perma-Seal Basement Systems, joins HouseSmarts Radio with Lou Manfredini to discuss healthy air in the home. You know Perma-Seal as the company to call for basement waterproofing and foundation repair, but they also have an air filtration and dehumidification system. Spencer explains how that service came about and says, ‘50% of the air that comes upstairs is coming from the basement and crawl space.’