cleaned all my vents also sanitized my system henry's crew during inspection found horrid MOLD growing in my system I WANTED THAT GONE !!I did not want my family breathing that ,now im secure in knowing im breathing clean fresh air in my home ! GREAT JOB AND GREAT CREW !!!!!!!!!!Thanks henrys' duct cleaning and thank you very much to your great crew they were professional every step of the way ! HIGHLY RECOMMEND