My sister has asthma so we always make sure that we keep things under control when it comes to the level of dust in her home. Recently she moved into a new place and she started having problems at night involving wheezing and was using her inhaler more often than she should have been. Premium Duct Cleaning helped her out tremendously. We are happy with the service and would definitely recommend them to anyone out there who has a partner with asthma. Thanks for great job !