Is Tea Tree Oil Safe to use ? September 29, 2014 No Comments Yes, Tea Tree Oil is safe, it contains natural germicides. Previous Post Next Post You may also like September 29, 2014 How often should I get my ducts cleaned ? August 18, 2018 Do you guys sanitise and deodorise the ducts after cleaning? September 29, 2014 Does Duct Cleaning make a lot of dust in the house ?