Comment: The two gentlemen who worked to clean our vents, returns and dryer vent just left. They were thorough and helpful and had great advice along the way. They used an anti microbial fog in hopes that the musty moldy smell in the basement will dissipate. They said that will take some time. They also put a UV light in the furnace air exchange that will kill germs and mold as the air passes through. Thank you Yeasdale Fenton for a job well done.